Paragraph: (Science-textbook/science-g4-15.txt)
Sent 1: Electric charge is a physical property.
Sent 2: It occurs between particles or objects.
Sent 3: It causes them to attract or repel each other.
Sent 4: They do not even have to touch.
Sent 5: This is unlike the typical push or pull you may be familiar with.
Sent 6: All electric charge is based on the protons and electrons in atoms.
Sent 7: A proton has a positive electric charge.
Sent 8: An electron has a negative electric charge.
Sent 9: Forces on Charged Objects Most atoms are balanced electrically.
Sent 10: They have the same number of positive and negative charges.
Sent 11: Therefore, the number of protons equals the number of electrons.
Sent 12: Neutrons do not matter as they have no charge.
Sent 13: When an object loses some electrons, it becomes positively charged.
Sent 14: There are now more protons than electrons inside the atom.
Sent 15: The lost electrons may remain free.
Sent 16: Or, they may attach to another object.
Sent 17: The new object now has more electrons than protons.
Sent 18: It then becomes negatively charged.

Question: What kind of charge does a proton have? (true/0)

Negative charge
A proton has a negative charge
Neutral
A proton has a neutral charge
Protons don't matter because they have no charge
Positive
A proton has a positive electric charge
A proton has a positive charge
A proton has a positive electrical charge

Question: What kind of charge does an atom with more electrons than protons have? (true/1)

Negative charge
Neutral
Negative
An atom with more electrons than protons has an electrical charge
Electrons have a negative charge
An atom can't have more electrons than protons
Positive charge
Electrons and protons don't have to touch
An atom with more electrons than protons will have a negative charge

Question: How will increasing neutrons affect the particle's charge? (true/2)

Question: Why does an object's charge become positive? (true/3)

Question: What kind of charge does a particle with more protons than electrons have? (false/4)

Question: What causes objects to attract or repel each other? (true/5)

Question: What physical property occurs between particles and objects? (true/6)

Proton charge
A physical property between particles and objects is an electrical charge
Neutrons
A nuclear charge between two objects is a physical property that occurs
Attraction and repulsion
Protons and electrons
Electric charge
Electrical charge is a physical property that occurs between particles and objects
Electrical charge

Question: What is the physical property that causes particles to attract or repel each other? (true/7)

A neutron charge causes particles to attract or repel each other
Atoms cause particles to attract or repel each other
An electrical charge
A proton charge
Electric charge
Electrical charge causes particles to attract or repel each other
Positive charge
Electric charge is the physical property that causes particles to attract or repel each other
A physical property occurs between particles or objects

Question: If a particle loses some of its protons, what is the particle's charge? (true/8)

Paragraph: (Science-textbook/science-g5-57.txt)
Sent 1: Sometimes a full Moon moves through Earths shadow.
Sent 2: This is a lunar eclipse .
Sent 3: During a total lunar eclipse, the Moon travels completely in Earths umbra.
Sent 4: During a partial lunar eclipse, only a portion of the Moon enters Earths umbra.
Sent 5: When the Moon passes through Earths penumbra, it is a penumbral eclipse.
Sent 6: Since Earths shadow is large, a lunar eclipse lasts for hours.
Sent 7: Anyone with a view of the Moon can see a lunar eclipse.
Sent 8: So unlike a solar eclipse, it doesnt get dark on Earth.
Sent 9: Instead it gets dark on the Moon.
Sent 10: Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common.
Sent 11: The Moon glows with a dull red coloring during a total lunar eclipse.

Question: Is it more common for the Moon to travel completely in the Earth's umbra or only partially? (true/0)

Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common
Partially
A total eclipse is less common than partial so it is more common for the moon to travel partially in Earth's umbra
Completely

Question: How is a lunar eclipse different from a solar eclipse? (false/1)

A solar eclipse causes the earth to brighten
It doesnt get dark on Earth during a lunar eclipse but does during a solar one
It doesn't get dark on Earth but instead gets dark on the moon and can be seem from anywhere on the Earth
It gets dark on the Moon during a lunar eclipse and not on Earth
A solar eclipse causes the earth to go dark
Lunar eclipse lasts for hours

Question: How often does total lunar eclipse occur and what color is the moon? (false/2)

Less often
More often
Less often than partial lunar eclipse which happen at least twice a year and the moon glows a dull red
Dull red
At least twice a year and the moon is dark
Bright red
The Moon glows with a dull red coloring during a total lunar eclipse, and they occur less than three times a year

Question: What is it called when the Moon moves through Earth's shadow completely? (true/3)

Penumbral eclipse
A total lunar eclipse
Lunar eclipse
A partial lunar eclipse

Question: What is a lunar eclipse? (true/4)

When the full move passes through moon's shadow
The Moon travels completely in Earths umbra
When the full move passes through earth's bright side
When the moon moves through the earth's shaddow
It is a full Moon moves through Earths shadow

Question: What is the difference between a solar and lunar eclipse? (true/5)

A lunar eclipse darkens the earth
So unlike a solar eclipse, a lunar eclipse doesn't get dark on Earth. Instead it gets dark on the Moon
During a solar eclipse the earth gets dark
It doesnt get dark on Earth during a lunar eclipse but does during a solar one
It gets dark on the Moon during a lunar eclipse and not on Earth
A solar eclipse brightens the earth
A lunar eclipse lasts for hours
A lunar eclipse doesn't cause the earth to darken

Question: What is it called when a full Moon moves through the Earth's shadow? (false/6)

A solar eclipse
Penumbral eclipse
Partial lunar eclipse
A lunar eclipse

Question: What is the difference between a lunar eclipse and a penumbral eclipse? (true/7)

When full Moon moves through Earths shadow, this is called a lunar eclipse
A penumbral eclipse is when the moon passes through the earth's umbra
When the Moon passes through Earths penumbra, it is a penumbral eclipse
In a lunar eclipse the Moon travels in Earths umbra. In a penumbral eclipse the Moon passes through Earths penumbra
A penumbral eclipse is when the moon passes through the earth's penumbra
Lunar eclipse lasts for hours

Question: What is the difference between a total lunar eclipse and a partial lunar eclipse? (true/8)

The difference is in lenght
Sometimes a full Moon moves through Earths shadow
Whether the moon completely or partially enters the earth's umbra
Total- the moon travels completely in Earth's umbra, partial- only a portion of the moon enters the Earth's umbra
During a total lunar eclipse, the Moon travels completely in Earths umbra, and only a portion does during the partial lunar eclipse

Question: What happens during a lunar eclipse? (true/9)

When the Moon passes through Earth's penumbra, it is a penumbral eclipse, and since Earth's shadow is large, a lunar eclipse lasts for hours
Only a portion of the Moon enters Earths umbr
The waning moon passes over earth's shadow
The a full moon passes over earth's shadow
A full Moon moves through Earths shadow

Question: How do partial and total lunar eclipses differ? (false/10)

One happens when the moon completely passes over the earth's umbra
Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common
Partial lunar eclipses occur at least twice a year, but total lunar eclipses are less common
Total lunar eclipses occur more often
The partial one occurs when only a portion of the moon passes over the earth's umbra
During a total lunar eclipse, the Moon travels completely in Earths umbra, and only a portion does during the partial lunar eclipse

Question: What are the types of lunar eclipses? (true/11)

Question: During a lunar eclipse, does the earth or moon get dark? (true/12)

The moon gets dark
The earth gets dark
It doesnt get dark on Earth
The Moon

Paragraph: (Science-textbook/science-g4-100.txt)
Sent 1: Earth processes have not changed over time.
Sent 2: The way things happen now is the same way things happened in the past.
Sent 3: Mountains grow and mountains slowly wear away.
Sent 4: The same process is at work the same as it was billions of years ago.
Sent 5: As the environment changes, living creatures adapt.
Sent 6: They change over time.
Sent 7: Some organisms may not be able to adapt.
Sent 8: They become extinct.
Sent 9: Becoming extinct means they die out completely.
Sent 10: Some geologists study the history of the Earth.
Sent 11: They want to learn about Earths past.
Sent 12: They use clues from rocks and fossils.
Sent 13: They use these clues to make sense of events.
Sent 14: The goal is to place things in the order they happened.
Sent 15: They also want to know how long it took for those events to happen.

Question: What is one example of how the earth's processes are the same today as in the past? (false/0)

People become rich, and then become poor
Things develop and then wither away
Mountains wear away
Mountains grow and mountains slowly wear away
Living creatures
Mountains grow and mountains slowly wear away. The same process is at work the same as it was billions of years ago
Living organisms adapt

Question: What are the goals of geologists? (true/1)

To place things in the order they happened
The goal is to place things in the order they happened
Make lots of money
To know how long it took for those events to happen
Make money
Learn about eath's past
Earth processes
Learn from the past

Question: What purpose do rocks and fossils serve? (true/2)

Clues of history of the Earth
Extinct
Clues for earths past
Make sense of events happened
Energy
They help people learn about Earths past by making sense of events and the order in which they occurred
Geologists
Give us clues from past
Serve as energy

Question: What happens to the living creature that fails to adapt to changes? (false/3)

Question: What happens when some living organism do not adapt to changes in the environment? (false/4)

Question: What two things can happen to living organisms when the environment changes? (true/5)

Question: What are geologists? (false/6)

They study the earth
Some Living Creatures
Scientists who study the history of the earth
Scientists who study the history of the earth because they want to learn about the Earth's past
They study the history of the Earth
They study the ocean
Professors

Question: Besides rocks, what else do geologists study to find clues to make sense of past events? (true/7)

Water
Plants
Fossils
Living Creatures

Question: What do geologists study to give them clues about the Earth's past? (true/8)

Question: According to this passage, on what planet do mountains grow and wear away? (true/9)

Some organisms
Mars
The Earth

Question: Who wants to learn about Earth's past? (true/10)

Some organisms
Geologists
Doctors
Musicians

Question: In what way is the Earth the same as the past? (true/11)

Earths processes do not change, and the same processes that occurred billions of years ago continue today
The way things happen now
Nothing has advance
Same process is at work
The processes have not changed
Mountains grow and mountains slowly wear away
Fossils
Lamdscape is the same
Rocks

Question: Who studies in order to learn about the earth's past? (true/12)

Librarians
Some organisms
Geologists
Lawyers

Question: How do geologist study the history of the earth? (false/13)

Reading
They change over time
They use these clues to make sense of events
Through fossils and the earth
Through history books
They look for clues in rocks and fossils to make sense of events and figure out how they happened
They use clues from rocks and fossils

Question: What becomes extinct if it can not adapt? (false/14)

Question: Who studies rocks to learn about the history of earth? (true/15)

Sculptors
Professors
Geologists
Living Creatures

Question: What happens when some organisms are not able to adapt and what does it mean for them? (false/16)

Question: Pattern of Earth Process is? (true/17)

Question: If Earths processes do not change, what does? (true/18)

Paragraph: (Science-textbook/science-g5-53.txt)
Sent 1: Chemical changes produce new substances.
Sent 2: For this reason, they often cannot be undone.
Sent 3: Some chemical changes can be reversed, sort of.
Sent 4: To do so requires another chemical change to take place.
Sent 5: For example, you can undo the tarnish on copper pennies by placing them in vinegar.
Sent 6: The acid in the vinegar reacts with the tarnish.
Sent 7: This is a chemical change that makes the pennies bright and shiny again.
Sent 8: You can try this yourself at home to see how well it works.
Sent 9: Other chemical changes cannot be reversed at all or may be difficult to do.
Sent 10: Rusting is a chemical change.
Sent 11: If metal rusts, the best you can do is to sand off the rust to get down to the shiny metal.
Sent 12: Although the metal may now be shiny, the rust was removed.
Sent 13: The rust was not changed back into the original metal.
Sent 14: Some chemical reactions occur in only one direction.
Sent 15: These reactions are called irreversible reactions.
Sent 16: For example, you cannot change a fried egg back into a raw egg.
Sent 17: Can you think of some other irreversible reactions related to cooking?
Sent 18: Would you like a piece of cake?

Question: What can you do to make pennies bright and shiny again? (false/challenge)

You can use vinegar to remove the tarnishes by causing another chemical change when they react.
placing pennies in vinegar
baking them
placing them in oil
raw eggs

Question: Can chemical changes be undone? (false/challenge)

Not really, but you can create a new chemical change that will bring the substance back to its previous state.
sometimes
yes- all of the time
never

Question: What are some examples of irreversible reactions? (false/additional)

rust
baking a cake
fried egg back into a raw egg
mixing water and oil

Paragraph: (Science-textbook/science-g4-53.txt)
Sent 1: Earthquakes seemed to outline a special feature of earth's crust.
Sent 2: Earthquakes let scientists know where the crust was moving.
Sent 3: This led to the discovery that the Earths crust was broken up into regions, or plates.
Sent 4: Earthquakes happen most often along these plate boundaries.
Sent 5: This was evidence that continents can move.
Sent 6: The movements of the plates are called plate tectonics.
Sent 7: The Earths crust is divided into plates.
Sent 8: There are about a dozen large plates and several small ones.
Sent 9: Each plate is named for the continent or ocean basin it contains.
Sent 10: Scientists know he plates are in motion.
Sent 11: They now know the direction and speed of this motion .
Sent 12: Plates dont move very fast.
Sent 13: They move only a few centimeters a year.
Sent 14: This is about the same rate fingernails grow.
Sent 15: So you might wonder, what could cause this motion?
Sent 16: What supplies the energy to cause this change?

Question: What showed scientists that continents can move? (true/0)

The evidence that earthquakes happen most often along these plate boundaries
Earthquakes on plate boundaries
Earthquakes
Speed of plate movement
Direction of plate movement

Question: To get a sense of how fast plates move, what can you look at on your body? (false/1)

Hair
Fingernails
Hand
Feet

Question: What do earthquakes tell scientists and what is special about them? (true/2)

Direction of crust movement
They tell scientist that the crust is moving and that the crust is broken up into plates where these earthquakes usually occur
Age of earth's crust
Movement of earth's crust
Composition of earth's crust

Question: What moves at the same rate that fingernails grow? (false/3)

States
Earth
Plates
Earthquakes

Question: How did scientists learn about the Earth's plates? (true/4)

Regions
Movement of earth's crust
Earthquakes
Direction of plate movement
Earthquakes seemed to outline a special feature of earths crust, showing them where the crust was moving

Question: How many plates is the earth's crust divided into? (false/5)

Less than 10
Uncountable
About a dozen large plates and several small ones
More than 10 large ones

Question: How fast do plates move? (true/6)

Very fast
Few meters a year
About the same rate fingernails grow
A few centimeters a year

Question: Why is it likely that scientists only learned about plate boundaries from studying earthquakes? (false/7)

They are visible during earthquake
Plates don't move very fast. Sent 13: They move only a few centimeters a year
They can be found out by intensity of earthquake
Movement of Plate lead to earthquakes at boundaries
Earthquakes occur at plate boundaries

Question: What led scientists to discover plates? (true/8)

Regions
Movement of earth's crust
Earthquakes
Direction of plate movement

Question: What led to the discovery that the Earths crust was broken up into regions, or plates? (true/9)

Plate tectonics
Direction and speed of plate movement
Movement of earth's crust
Earthquakes

Question: What do scientists know about the plates motion? (false/10)

The direction and speed
Speed of motion
Direction of motion
When they will move

Question: Earthquakes happen along plate boundaries, which scientists believe is evidence that what moves? (false/11)

Oceans
Earth
Earth's land masses
Continents

Paragraph: (Science-textbook/science-g3-27.txt)
Sent 1: The world can be divided into three climate zones.
Sent 2: The first climate zone is the polar zone.
Sent 3: As it sounds, the polar zone is near earths poles.
Sent 4: The polar zone has very long and cold winters.
Sent 5: Brrr!!!!
Sent 6: Near the equator is the tropical zone.
Sent 7: The tropical zone is known for being hot and wet.
Sent 8: Between these two zones is the temperate zone.
Sent 9: Temperatures there tend to be mild.
Sent 10: Its not too hot and not too cold.
Sent 11: You might expect places near the equator to be hot and wet.
Sent 12: Thats not always the case.
Sent 13: Sometimes there are other factors at work.
Sent 14: These factors can affect the local climate type or a region.
Sent 15: Oceans and mountain ranges can have a major impact.
Sent 16: They can greatly influence the climate of an area.
Sent 17: Many factors influence an areas climate.

Question: What's the weather like between the equator and the first zone? (true/0)

Question: In which zone are temperatures neither too hot nor too cold? (false/1)

Question: What is the tropical zone known for? (true/2)

Question: What three climate zones can the earth be divided into? (true/3)

Question: What can influence the climate of the area? (true/4)

Question: What is the tropical zone? (true/5)

Question: How is the world divided? (false/6)

Question: Which climate zone is situated between the other two geographically? (false/7)

Question: What is the polar zone? (true/8)

Question: Which of the 3 zones is near the equator? (false/9)

Question: What is the temperate zone? (true/10)

The area between the tropical and polar zones where the temperatures are mild
Mild weather between tropical and polar
The whole world
Area near the equator
Area between Polar and Tropical zones
Hot similar to tropical
Area closest to the poles

Question: What are two factors that can affect the climate of an area? (true/11)

Question: Are there factors that could actually cause an area in the tropical zone not to be hot and wet? (true/12)

Question: What's the climate of the equator? (true/13)

Question: What are the world's three climate zones? (true/14)

Question: Which of the 3 climate zones is near the earths poles? (true/15)

Question: What is the temperature zone known for? (true/16)

Question: What are some characteristics of the first climate zone? (false/17)

Question: Which of the 3 climate zones have long and cold winters (true/18)

Paragraph: (Science-textbook/science-g5-61.txt)
Sent 1: We need natural resources for just about everything we do.
Sent 2: We need them for food and clothing, for building materials and energy.
Sent 3: We even need them to have fun.
Sent 4: Table 2.1 gives examples of how we use natural resources.
Sent 5: Can you think of other ways we use natural resources?
Sent 6: Use Vehicles Resources Rubber for tires from rubber trees Steel frames and other metal parts from minerals such as iron Example iron ore Electronics Plastic cases from petroleum prod- ucts Glass screens from minerals such as lead lead ore Use Homes Resources Nails from minerals such as iron Timber from trees Example spruce timber Jewelry Gemstones such as diamonds Minerals such as silver silver ore Food Sunlight, water, and soil Minerals such as phosphorus corn seeds in soil Clothing Wool from sheep Cotton from cotton plants cotton plants Recreation Water for boating and swimming Forests for hiking and camping pine forest Some natural resources are renewable.
Sent 7: Others are not.
Sent 8: It depends, in part, on how we use them.

Question: What do we need to have fun (true/0)

Question: Some natural resources are renewable others are not, in part depending on (true/1)

How much of them exist
They will grow back
How we use them
How much they cost

Question: What do we need for food and clothing (true/2)

Question: What do we need for building material and energy (true/3)

Question: What are some basic reasons we need natural resources? (false/4)

Question: What are other uses of natural resources? (true/5)

Question: What are some natural resource sources we can use as building materials? (false/6)

Question: How can natural resources help us have fun? (true/7)

The can be used to make life easier
Water for hiking and swimming; Forests for swiming.
Boating
We can use them to produce products used for fun
Making money
Camping
Water for boating and swimming Forests for hiking and camping pine forest

Question: What are natural resources needed for? (true/8)

Question: Are natural resources renewable? (true/9)

Some aren't
Always
Some are, some aren't, depending on how we use them

Paragraph: (Science-textbook/science-g4-11.txt)
Sent 1: The highest point of a wave is the crest.
Sent 2: The lowest point is the trough.
Sent 3: The vertical distance between a crest and a trough is the height of the wave.
Sent 4: Wave height is also called amplitude.
Sent 5: The horizontal distance between two crests is the wavelength.
Sent 6: Both amplitude and wavelength are measures of wave size.
Sent 7: The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows.
Sent 8: The greater each of these factors is, the bigger a wave will be.
Sent 9: Some of the biggest waves occur with hurricanes.
Sent 10: A hurricane is a storm that forms over the ocean.
Sent 11: Its winds may blow more than 150 miles per hour!
Sent 12: The winds also travel over long distances and may last for many days.

Question: What is the opposite of the crest of the wave? (true/0)

Question: What do we know about wavelength from the paragraph? (true/1)

It is the distance between two crests, and is a factor in wave size
The vertical distance between a crest and a trough is the height of the wave
It is also called amplitude
The horizontal distance between two crests
The horizontal distance between two crests is the wavelength
The vertical distance between a crest and a trough
Its a measure of wave size

Question: How are the lowest and highest points of a wave related to its amplitude? (true/2)

The vertical distance between a crest and a trough is the height of the wave. Sent 4: Wave height is also called amplitude
Lowest is Crest and Highest is Trough
Wavelength
The vertical distance between the highest point of the wave and the lowest point of the wave is the height of the wave, which is also called its amplitude
The highest point of a wave is the crest
Trough and Crest

Question: How many times is wind mentioned? (false/3)

More than Five
1
Less than Five
3

Question: What is said about hurricanes in the paragraph? (true/4)

Hurricanes don't cause much damage
Storm that forms over the ocean
A hurricane is a storm that forms over the ocean. Sent 11: Its winds may blow more than 150 miles per hour!
They form over oceans and produce some of the biggest waves
Winds may blow more than 150 miles per hour
He horizontal distance between two crests is the wavelength
Hurricanes form over the land

Question: What are the highest and lowest points of a wave? (true/5)

Lowest is Crest and Highest is Trough
Wavelength
Amplitude and wavelength
Crest and trough
Lowest is Trough and Highest is Crest
The highest point is a crest, and the lowest point is a trough
Trough and Crest

Question: What do we know about wind from the paragraph? (true/6)

How fast, over how great a distance, and how long the wind blows
Winds cannot travel over long distance
Winds may last for many days
How long the wind blows determines the wave size. They can blow 150+ mph
Winds cannot last more than a hour
Winds travel over long distances
Winds may blow more than 150 miles per hour! Sent 12: The winds also travel over long distances and may last for many days

Question: What is the vertical distance between a crest and a trough? (false/7)

Question: How do you calculate the height of a wave? (true/8)

Vertical distance between a crest and a trough
The horizontal distance between two troughs
The vertical distance between a crest and a trough is the height of the wave
Both amplitude and wavelength are measures of wave size
While swimming
The horizontal distance between two crests
The vertical distance between the highest point and the lowest point of the wave

Question: What are a hurricane's winds like? (true/9)

Less than 100 miles per hour
A storm that forms over the ocean
More than 150 miles per hour
The winds may blow more than 150 miles per hour and travel over long distances, lasting many days
He horizontal distance between two crests is the wavelength

Question: When concerning wave height, what are the highest and lowest points called? (false/10)

Question: What is the difference between wavelength and amplitude? (false/11)

The horizontal distance between two crests is the wavelength and Wave height is also called amplitude
Both amplitude and wavelength are measures of wave size
Both are same
Amplitude is a vertical distance (the height of the wave). Wavelength measures a horizontal distance (between two crests)
The horizontal distance between two crests is the amplitude and vertical distance between a crest and a trough is called wavelength
Horizontal distance between two troughs is wavelength and vertical distance between a crest and a trough is called amplitude
The vertical distance between a crest and a trough is the height of the wave. and The horizontal distance between two crests is the wavelength

Question: Other factors being equal, why would an ocean wave be larger if the wind were blowing 150 miles per hour than if it the wind were blowing 100 miles per hour? (true/12)

Wave height is also called amplitude
Because a faster wind hits ocean directly
The greater the wind, the bigger will be the wave
The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows
Because the faster wind speed will cause the wave to be larger than a slower wind speed
Because a faster wind lasts longer
It increases the amplitude of the wave

Paragraph: (Science-textbook/science-g4-114.txt)
Sent 1: Above were just a few things that caused habitat loss or change.
Sent 2: There are many ways in which living organisms can affect their ecosystem.
Sent 3: In some areas, it is because of fire management.
Sent 4: Fire is a natural event, so managing fire correctly is very important.
Sent 5: In other areas, fisherman have taken too many fish from one area.
Sent 6: This places the species at risk of extinction.
Sent 7: It also affects other living things that may rely on these fish for food.
Sent 8: The image below shows a picture of a mine.
Sent 9: Mining changes the Earths surface.
Sent 10: This area may once have been a forest or a prairie.
Sent 11: Think about how many plants and animals may once have lived here.
Sent 12: Now it is a giant hole in the ground.
Sent 13: Pollution is also a major factor in habitat loss and change.

Question: How does mining change the earths surface? (true/0)

Removes or changes forests and prairies, leaves giant holes in the ground
Lose of Water
It causes a giant hole
It changes the composition of the surface
Plants and animals eat the extra food
Forest goes under the water

Question: How does mining change the earth's surface? (true/1)

Lose of Water
It causes a giant hole to be present in that area which changes the structure of the surface there
It changes the chemical composition of the surface
Plants and animals are turned into giant holes
Forest get crowded with plants and animals
It leaves a giant hole in the ground where there may once have been a forest or a prairie where many plants and animals may once have lived

Question: How can living organisms affect their ecosystems? (false/2)

Question: Can mining be a cause of habitat loss or change? (false/3)

No
Yes

Question: What could place a species at risk for extinction? (false/4)

Question: Name four things that can cause habitat loss or change. (true/5)

Fire, Fisherman, Mining and Pollution
Fire management,Natural Events,Mining,Pollution
Mining, over-fishing, fire, pollution
Habitation, over-breed, chemicals, over-feeding
Fishes

Question: How does over fishing effect an ecosystem? (false/6)

Fishing too much from an area could result in increasing the number of fishes in that area
Some species may face extinction, and affects other living things that rely on fish for food
Fishes
It takes away too many fished causing extinction
It causes over-breeding of fishes in that area

Question: How does fishing impact ecosystems? (true/7)

Fisherman have taken too many fish from one area. This places the species at risk of extinction. It also affects other living things that may rely on these fish for food
Water changes
It causes the fish to migrate and other animals might migrate with them too
It reduces the number of fish and other animals may be reliant on fish too
Fishes at risk for extinction

Question: Is it possible for a living organism to affect their ecosystem? (true/8)

Not Possible
Possible
There are many ways living organisms can affect their ecosystem. One way is by managing fire. Another method can be done by mining

Question: What can occur if fishermen over-fish an area? (true/9)

Fish increases
Extinction
Species at risk for extinction
Fish at risk for extinction
Habitation
The fish that were taken could become extinct and that would affect other living things that relied on these fish as food

Paragraph: (Science-textbook/science-g4-60.txt)
Sent 1: What if you could drain all of Earths oceans?
Sent 2: What would it look like?
Sent 3: You might be really surprised.
Sent 4: You see that the surface has two main features.
Sent 5: It has continents and ocean basins.
Sent 6: Continents are large land areas.
Sent 7: These are the areas that are mostly above sea level.
Sent 8: Ocean basins extend from the edges of continents.
Sent 9: They include the ocean floor and Earths deep ocean trenches.
Sent 10: You will also notice the ocean floor is not flat.
Sent 11: It too has many Continents are much older than ocean basins.
Sent 12: Some rocks on the continents are billions of years old.
Sent 13: Ocean basins may only be millions of years old.
Sent 14: Because the continents are so old, a lot has happened to them!
Sent 15: As we view the land around us, we see landforms.
Sent 16: Landforms are physical features on Earths surface.
Sent 17: These features change over time, but how?
Sent 18: There are actually two types of forces at work.

Question: What are two elements of ocean basins? (true/0)

Question: What are large land masses called? (false/1)

Question: What are the characteristics of the ocean floor? (true/2)

Sand
It is not flat, it has many continents that are much older than ocean basins. Some of these continents are billions of years old
It has features and forces
It has basins an dcontinents
Coral
Ocean basins
Continents

Question: Which are older: continents or ocean basins? (true/3)

Surface
Ocean basins
Continents

Question: Do features of the Earth changes over time? (true/4)

No
Yes
Landforms are physical features on Earths surface
These features change over time
Some rocks on the continents are billions of years old
Yes they do due to two forces

Question: What is a landform? (false/5)

Physical features change over time.
Landform
A feature next to the ocean floor
Landforms are physical features on Earths surface
Ocean basin
Landforms are physical features of the land around us, that appear on continents
A feature on the bottom of the sea

Question: What are continents? (true/6)

Large stretches of connected land
Ocean floor
Landmass
Above sea level
Continents are large land areas
Deep trenches on the ocean floor
Continents are large land areas, that are mostly above sea level

Question: What are ocean basins? (true/7)

They extend from the ocean basins
Landmass
They include the ocean floor and Earths deep ocean trenches
They extend from the ocean floor to the surface
Ocean basins extend from the edges of continents, include the ocean floor and Earths deep ocean trenches
Ocean basins extend from the edges of continents
Earths surface

Question: What Earth features are mostly above sea level? (true/8)

Question: What does the Earth's surface consist of? (true/9)

Question: What are the ages of ocean basins and continents? (true/10)

They are hundreds of years old
Old
Continents have rocks that are billions of years old; ocean basins may only be millions of years old
Ocean basins billions years old
Continents are millions of years old
Thousand years old

Question: What are the characteristics of continents? (true/11)

They have basins and levels
Billion years old
Have had a lot happen to them
They are bumpy and change
Above sea level
They are large land areas that are mostly above sea level. Ocean basins may only be millions of years old
Land areas

Paragraph: (Science-textbook/science-g3-35.txt)
Sent 1: Is this an insect or an animal?
Sent 2: A snail is an animal just like you and me.
Sent 3: Thats right, you too are an animal.
Sent 4: No, you don't look like a snail.
Sent 5: You do have some things in common.
Sent 6: Animals can be divided into many groups.
Sent 7: These groups are decided based on their characteristics.
Sent 8: All animals have some basic features in common.
Sent 9: That does not mean they are the same.
Sent 10: They also have many differences.
Sent 11: For example, snails are mollusks and not insects.
Sent 12: Mollusks have a unique set of features.
Sent 13: Notice the large foot that allows it to move.
Sent 14: Yes, it only has one foot.
Sent 15: Did you notice the long antennas on its head?
Sent 16: This is where the snail's eyes are.
Sent 17: They are on the end of the antenna.
Sent 18: They are not on its head like most animals.
Sent 19: The foot and eyes are unique features.
Sent 20: Scientists use these features to place animals into groups.

Question: How are animals divided? (false/0)

If they walk or fly
If they birth live young
There divided based on characteristics
Into groups based on their characteristics
They are divided into groups based on characteristics
They are divided based on the size of the feet
Whether they breathe in water or on land

Question: Name one identified difference between snails and insects. (false/1)

Slime producing glands
The antenna
Snails have eyes on the antennae whereas insects have them on the head
It has one foot
It has one foot that allows it to move
Snails only have one foot
The noises they make
Snails have large feet whereas insects don't

Question: Where are a snail's eyes located? (true/2)

Question: Where are snails' eyes? (true/3)

Question: What common feature do mollusks and snails have? (true/4)

Question: What animal do you have things in common with? (false/5)

Question: Are snails insects? (true/6)

No, they are not. They are mollusks
Yes, they are mollusks too
In a manner of speaking
Yes

Question: How are snails different? (false/7)

They have eyes on the antennae
They are slow movers
They have unique feet and eyes, and their eyes are not on their heads like most animals
They are silent
They breathe through their skin
They have eyes on the head
They have one foot and eyes on the antenna on their head

Question: What are snails' unique features? (true/8)

Question: Where are the snails eyes? (true/9)

Question: How many appendages do snails use to move? (false/10)

One
Snails use their single foot
Three

Paragraph: (Science-textbook/science-g5-49.txt)
Sent 1: Have you are burned something on the stove or in the oven?
Sent 2: Do you know why things burn?
Sent 3: It all has to do with temperature.
Sent 4: Changes in matter are affected by temperature.
Sent 5: For example, what if you place a cake in the oven and you leave it in too long?
Sent 6: What do you think will happen?
Sent 7: Thats right, it will probably burn.
Sent 8: The same thing will happen if the oven setting is too high and you apply too much heat.
Sent 9: In either case, heat has affected the rate of change in matter.
Sent 10: Its probably obvious that when the temperature is increased a chemical change, like cooking, will occur faster.
Sent 11: What about a physical change?
Sent 12: Are physical changes affected by temperature?
Sent 13: Most of us have seen steam rising off a wet road after a summer rainstorm.
Sent 14: This happens because the road surface is very warm.
Sent 15: The warm road and warm air temperature causes the water to evaporate quickly.
Sent 16: The liquid water is turning into water vapor, but it is still water.
Sent 17: The evaporation of water is a physical change.
Sent 18: So yes, temperature affects the rate that physical change occurs.

Question: What is causing cakes in the oven to burn and water from the road to evaporate on the hot day? (true/0)

Question: Why would steam rise off a wet road after a summer rainstorm? (false/1)

Gain in temperature
Because the road surface is very warm
Chemical change
Because the road surface is very cool
Since the road surface is very warm, the warm road and warm air temperature causes the water to evaporate quickly

Question: What can happen if you place a cake in an oven and apply too much heat or set the oven heat too high? (false/2)

Question: What causes things to burn? (true/3)

Question: What kind of changes can be caused by temperature? (true/4)

Question: What can heat cause? (true/5)

Rate of change of matter
Heat affects the rate of change in matter
Heat can affect the rate of change in matter, and when the temperature is increased a chemical change, like cooking, will occur faster
Heat cools the physical change
Change of temperature

Question: Why do things burn? (true/6)

Things burning have to do with temperature since changes in matter are affected by temperature
Because of rise in temperature
Overheat
Due to raise in temperature
Due to fall in temperature
Because they gain temperature
Cooking faster

Question: What is the physical change in temperature we see during the summer and how does it occur? (true/7)

Question: What is are some physical changes caused by temperature? (false/8)

Chemical change
Evaporation of water
Rise in temperature, condensation
Steam rising off a wet road after a summer rainstorm
Liquid turning into vapor, evaporation, road becoming warm
Water becoming in to cool ice
Water turning into vapor, cake burning

Question: What can cause a physical change to water? (false/9)

Question: Give two examples of how heat affects the matter. (false/10)

It helps to form ice and to form a solid
Evaporation,liquid
Evaporation, chemical changes
Liquid water is turning into water vapor, but it is still water. The evaporation of water is a physical change.if you place a cake in the oven and you leave it in too long,it will burn
The cake in the over left for too long will burn, the same if the heat is too high
Burn, overheat

Paragraph: (Science-textbook/science-g4-58.txt)
Sent 1: How can you describe your location?
Sent 2: You might use a familiar system.
Sent 3: You might say, 'I live at 1234 Main Street, Springfield, Ohio.' You could also say, 'I live right behind the Elementary School.' This method uses the school as a point of reference.
Sent 4: Another example is, I am at the corner of Maple Street and Main Street. Both streets may be a good reference for anyone living in your town.
Sent 5: Scientists must be able to pinpoint a feature they are studying.
Sent 6: Scientists use a special system to describe locations.
Sent 7: They use latitude and longitude as a reference.
Sent 8: Lines of latitude and longitude form a grid.
Sent 9: You may have used a grid system while doing graphing.
Sent 10: This grid is centered on a reference point.
Sent 11: Zero latitude is the equator.
Sent 12: Lines of latitude run east to west.
Sent 13: They divide the Earth from North to South.
Sent 14: Lines of longitude run from north to south.
Sent 15: They divide the Earth from East to West.
Sent 16: Zero longitude runs through Greenwich, England.
Sent 17: You may have heard the term, Greenwich Mean Time, or GMT.
Sent 18: The system of latitude and longitude works well for objects that do not move.

Question: How do scientists describe locations? (false/0)

Latitude and longitude
Landmark reference points
By referring to other familiar places
A special system of latitude and longitude
Galaxy grids
Street reference points
: They use latitude and longitude as a reference

Question: Where are zero longitude and latitude located? (true/1)

Question: What reference points do scientists use to describe location? (false/2)

Latitude and longitude
They use latitude and longitude as a reference
South pole
Latitude and Longitude based on the reference point of zero being the equator
North pole
Well known places
Equator

Question: Which directions could you be going if you followed the equator? (true/3)

North and south
East or west

Question: How do lines of longitude and latitude differ from one and another? (false/4)

Lines of latitude run east to west and longitude is north to south
Longitudinal lines run North to South while latitudinal lines run East to West
Lines of latitude run north to south, lines of longitude run from east to west
Longitude is longer than latitude
Lines of latitude run north to south and longitude runs east to west
Latitude is two dimensional and longitude is three dimensional
Latitude runs the length and longitude runs the width

Question: Would a line of latitude that runs through Greenwich, England, divide the Earth from north to south or from east to west? (true/5)

East to west
East to North
North to South
North to south

Question: Which directions could you be going if you followed the zero longitude line? (false/6)

North or south
East and west

Question: What line, running north to south, passes through Greenwich, England and is also at the equator? (false/7)

Zero longitude
Zero latitude
Equator
Tropic of Capricorn

Question: Which way do lines of latitude run and what do they divide? (false/8)

Runs horizontal and the divide north and south
They are parallel and perpendicular to equator, divide Earth
Runs vertical and divides east and west
Runs vertical and divides north and south
East, west, north south
Lines of latitude run east to west, lines of longitude run from north to south. They divide the Earth

Question: Why do scientists use latitude and longitude as a reference? (true/9)

To make a cross point easy to find
To describe locations
To find locations faster
To prove their point
For lack of a better system
To pinpoint a feature they are studying
Lines of latitude and longitude form a grid

Question: What does GMT stand for and how it is determined? (false/10)

Greenwich Mean Time, Zero longitude runs through Greenwich, England
GMT stands for Greenwich Mean Time and is determined by the location of Longitudinal lines
Greenwich Marine Time and it is determined by the sun
Great Migrating Time and it is determined by season
Great Magazine of Timepieces, determined by user reviews
Greenwich Mean Time and it is determined by Zero longitude runs through Greenwich, England
Greenland Mean Team and it is determined by zero degrees latitude

Question: What are two ways of describing the same location? (true/11)

Use a familiar system or define location in relation to other places
Latitude
To describe location one might give the cross streets for the current position or recite the entire street address
Longitude
Remembering street names may be a good reference
There is only one way of describing the same location
Equator
Uses the school as a point of reference.- a specific landmark

Question: Does the equator divide the Earth from east to west or from north to south? (true/12)

East to West
North to South

Question: Lines of latitude running East to West divide the earth from? (false/13)

East to west
South to West
North to South

Question: What two major ways do scientist divide the Earth to pinpoint location? (false/14)

Use a familiar system or define location in relation to other places
Use latitude and longitude as a reference
By street
By equator
By landmark
A scientist would use a grid system which divides the Earth into North and South and East to West

Question: What are some ways besides latitude and longitude in which people describe location? (true/15)

Question: Which way do lines of longitude run and what do they divide? (false/16)

Run horizontal and divide east and west
Run vertical and divide east and west
They are parallel and perpendicular to equator, divide Earth
North, south, east, west
Run vertical and divide north and south
They run horizontal and divide north and south
Lines of latitude run east to west, lines of longitude run from north to south. They divide the Earth

Paragraph: (Science-textbook/science-g5-1.txt)
Sent 1: Magnets are able to place a force on certain materials.
Sent 2: This force is called a magnetic force.
Sent 3: The force a magnet exerts is a little different from the forces you may normally think about.
Sent 4: You exert a force on a book when you lift it.
Sent 5: You also exert a force on the pedals of your bicycle.
Sent 6: In both those cases, those forces cause a change.
Sent 7: The change you see in both these cases is called motion.
Sent 8: Magnets, too, can produce change.
Sent 9: They can produce motion just like you do.
Sent 10: Unlike you, magnets do not have to touch something to exert a force.
Sent 11: A magnetic force is exerted over a distance.
Sent 12: Thats right, a magnet can push or pull certain items without ever touching them.
Sent 13: Thats how the maglev train works.
Sent 14: Do you know another type of force that does not require objects to touch?
Sent 15: These forces are known as non-contact forces.
Sent 16: Another type of non-contact force you may be familiar with is gravity.
Sent 17: Gravity too can cause changes in motion.
Sent 18: Gravity holds our moon in orbit without touching it.

Question: The force that holds our moon in place, is an example of what type of force? (false/0)

Question: What is another type of force that does not require objects to touch? (false/1)

Question: How are magnetic forces different from other forces? (false/2)

They produce force without touching
Pretty much the same; the all use touching
Magnets produce force by touching
Other forces cause a change called motion
Magnetic force can produce motion without actual contact with certain materials

Question: Can magnets produce motion? (true/3)

No, they can only produce change
No
Yes, they can

Question: What kind of force is used to move a maglev train? (true/4)

Non-contact force
Physical force
The maglev train can push or pull certain items without ever touching them
Magnetic force

Question: The force magnets put on certain materials is called what? (true/5)

Magnets do not put force on certain materials
Magnetic Force
Wind force
contact force

Question: What is a magnetic force? (true/6)

Force exerted by wind
The force a magnet places on a material
The force Magnets able to place on certain materials

Question: Does a magnet have to be touching an object to assert push or pull? (false/7)

Yes, contact is important for the magnetic forces
No, it doesn't have to touch certain object to assert push or pull
No
Yes
No it is exerted over a distance

Question: What are a few examples of non-contact force? (false/8)

Question: The force you exert on your bike pedals that causes change is called what? (true/9)

Question: Name a few types of non contact force (true/10)

Question: What can magnets do? (false/11)

Magnets are able to place a force on certain materials
Magnets can produce change on materials
Magnets can touch and produce force
They can place a force on certain materials called a magnetic force

Question: How do magnets produce change? (true/12)

They produce change just like humans do
They produce change by exerting a force over a distance
By touching things
Magnets do not have to touch something to exert a force
They can produce motion

Question: What are non contact forces? (true/13)

Force exerted by touching
Forces exerted without touching anything
Non-contact forces are gravity and maglev train
Force that does not require objects to touch
Non-contact forces are forces that do not require touching to produce a change or motion

Question: How do magnets exert force? (false/14)

They exert force by producing a change
By touching anything
They exert force without coming into contact with certain material
A magnetic force is exerted over a distance
A magnetic force is exerted over a distance and can push or pull certain items without ever touching them

Question: What is the difference between magnetic force and the force a human uses to move things? (true/15)

Magnets do not have to touch something to exert force, it is extended over a distance
The difference lies in exertion. Unlike humans, magnets do not have to touch something to exert a force
Magnets touch something
Magnets do not have to touch something to exert a force
The change magnet produce

Paragraph: (Science-textbook/science-g4-47.txt)
Sent 1: Heat supplies the energy that causes motion.
Sent 2: The deeper you go into toward the Earths core, the hotter it gets.
Sent 3: At the core it is really hot.
Sent 4: All that heat tries to rise toward the surface.
Sent 5: In the Mantle, the rock is partially melted and is able to move.
Sent 6: As it is heated, the material in the mantle moves toward the surface.
Sent 7: As the mantle material rises, it cools.
Sent 8: When it reaches the Earths crust, it is mostly stopped.
Sent 9: A little of the material can break through the surface, but not all.
Sent 10: Instead, it begins to move horizontally.
Sent 11: The mantle material moves horizontally away from a mid-ocean ridge crest.
Sent 12: Toward the surface, the mantle material starts to cool.
Sent 13: As it cools it sinks back down into the mantle.
Sent 14: These areas are where deep sea trench occur.
Sent 15: The material sinks back down to the core.
Sent 16: The system operates like a giant conveyor belt.
Sent 17: The motion due to heating and cooling is called convection.

Question: What can the motion of convection be compared to? (true/0)

Question: What kind of feature occurs where cooled mantle material sinks back down into the mantle? (true/1)

Question: What happens to the cooled mantle material that does not break through the surface? (false/2)

Question: What happens to the heated material in the mantle as it rises toward the surface? (false/3)

Question: Where does the heat deep in the Earth try to go? (false/4)

Question: Why does the system work as a conveyor belt? (false/5)

Because it has a structure like a conveyor belt
The material sinks back down to the core
Heat supplies the energy for motion
Because the motion between heating and cooling
Due to motion
Because the material moves horizontally
Because the material goes and comes up down in a cycle
Because the mantle goes up and down

Question: Which direction does the mantle move? (false/6)

Vertically
Horizontally
It goes down
It moves horizontally

Question: What happens when the mantle material that is near the surface starts to cool? (true/7)

It sinks back down into the mantle
It continues going toward the surface
It starts moving horizontally
It stops

Question: Where do sea trenches occur? (false/8)

Question: Does rock move more at the surface of the earth or at its core? (true/9)

At the surface because there is more space
At the Surface
At its core because it has more heat
At its core

Question: What is the coolest part of the earth? (true/10)

The mantle
The equator
The core
The surface

Question: The hottest part of the earth is? (false/11)

Question: Why does the material move horizontally? (true/12)

Because it moves away from the ocean ridge crest
Because it cannot break through the surface
It can't break through the surface
Because it is cooler
Because it reaches the core

Paragraph: (Science-textbook/science-g4-26.txt)
Sent 1: Surely, you have noticed the tall poles along the roadside.
Sent 2: Do you know what is on top of those poles?
Sent 3: Thats right, wires that carry electric current.
Sent 4: These wires carry electric current to your home.
Sent 5: But what is electric current?
Sent 6: Electric current is actually the flow of electrons.
Sent 7: You may recall, an electron is the outer-most particle in an atom.
Sent 8: They have a negative charge.
Sent 9: Electricity is the continuous flow of these particles.
Sent 10: Electrons are able to move through wires.
Sent 11: Their speed can even be measured.
Sent 12: The SI unit for electric current (or speed) is the ampere (A).
Sent 13: Ampere is often shortened to amp.
Sent 14: Electric current may flow in just one direction, or it may keep reversing direction.
Sent 15: Direct current (DC) flows in only one direction.
Sent 16: Direct current is what is used in devices like flashlights.
Sent 17: Alternating current (AC) flows in two directions.
Sent 18: This is the type of current that flows into your home through wires.

Question: What type of current flows through your home? (true/0)

Direct current
DC
AC
Alternating current

Question: Does an electric current run through the wires atop the tall poles along the roadside? (true/1)

Yes it does
No it doesn't

Question: What is an Ampere? (false/2)

Question: Electricity is the continuous flow of the particles found in the outer most particle of what? (false/3)

Question: Do electrons have a positive or negative charge? (true/4)

No
Negative Only
Yes
Positive Only

Question: How many directions is the current flowing in that arrives through wires into our homes? (true/5)

Question: How is alternating current different from direct current? (false/6)

Two directions
They are the same
Alternating current can go in two directions, Direct just in one
Single Direction
Direct current flows in one direction. Alternating current flows in two directions
By the direction of the flow
Bi-directional
By the charge of the particles

Question: How many directions does a current flow in a flashlight? (true/7)

Question: What kind of particles are carried in the wires at the top of the tall poles along the roadside? (false/8)

Question: Where are the wires that carry electric current to your home? (false/9)

Question: What is created when the outer-most particles of an atom are flowing? (true/10)

Question: Where do the wires carry electric current? (false/11)

Question: What is on top of the poles on the roadside? (false/12)

Question: What kind of charge does an electron have? (false/13)

Question: Electric current is a flow of electrons. Do electrons have a negative or positive charge? (false/14)

Question: What are two types of electric current? (true/15)

Paragraph: (Science-textbook/science-g3-37.txt)
Sent 1: Fossils may form in other ways.
Sent 2: Fossils can be preserved almost completely.
Sent 3: In this process, the organism doesnt change much.
Sent 4: As seen below, tree sap may cover an organism.
Sent 5: With time, the sap hardens.
Sent 6: It turns to into amber.
Sent 7: The original organism is preserved.
Sent 8: This is very exciting for scientists.
Sent 9: They are able to study the DNA of the organism that no longer lives on Earth.
Sent 10: Some animals have been found frozen in ice.
Sent 11: Others have been found in tar pits after falling in.
Sent 12: Molds and casts are another way organisms can be fossilized.
Sent 13: Have you ever walked in soft mud and left footprints?
Sent 14: Once in a while, these traces of organisms can be preserved.
Sent 15: In this case, nothing is left of the organism.
Sent 16: A mold is an imprint of an organism that is preserved in rock.
Sent 17: The organisms remains break down completely.
Sent 18: There is nothing left of the original plant and animal.

Question: When tree sap covers an organism and hardens, what does it become? (false/0)

Question: What is a mold? (false/1)

A complete fossil
A mold is an imprint of an organism with no remains of the original organism
A mold is an imprint of a fossil
Fossil fuel
A complete organism
It's a spore
An imprint of an organism that is preserved in rock

Question: What type of fossil is made from when the animal breaks down completely, and only leaves an imprint of the organism? (false/2)

Question: Why is amber so exciting for scientists? (true/3)

Because it leaves a mold
Because they see a real animal
It looks beautiful
Scientists are able to study the DNA of the organism that no longer exist on Earth
It completely preserves the object
It can preserve an organism, including the DNA of creatures that don't exist on earth anymore
Because it leaves a cast

Question: How is amber made? (true/4)

Question: What are other ways organisms can be preserved? (true/5)

Question: How can fossils be completely preserved? (false/6)

Question: Leaving your footprint in mud, is similar to what process that creates fossils? (false/7)

Question: What are other fossils besides amber and molds? (true/8)

Question: What are three materials an organism can be preserved in? (false/9)

Question: How is a mold of an footprint made? (true/10)

With plaster
By gravity
An animal or a plant organism breaks down completely and preserved in a rock
The footprint is made in a soft substance that is imprinted and preserved as a rock
Through erosion
Imprint of an organism- walking through mud
It just sticks

Question: What is created when an animal or a plant organism breaks down completely and preserved in a rock (true/11)

Fossil
Cast
Mold
Hydro glyph

Question: What can scientists study about a fossil found in amber, that they normally cannot with most fossils? (false/12)

Paragraph: (Science-textbook/science-g4-16.txt)
Sent 1: You approach the door of your friends house.
Sent 2: What is the first thing you do before entering?
Sent 3: Of course, you wipe your feet.
Sent 4: You are a thoughtful visitor.
Sent 5: Fortunately, there is a nice piece of carpet by the door to wipe your shoes.
Sent 6: Too bad your caring comes at a price.
Sent 7: After wiping your feet on the mat you reach out to touch the brass knocker on the door.
Sent 8: A spark suddenly jumps between your hand and the metal.
Sent 9: You feel an electric shock.
Sent 10: Why do you think an electric shock occurs?
Sent 11: An electric shock occurs when there is a sudden discharge of static electricity.
Sent 12: Has this ever happened to you?
Sent 13: You reached out to touch a metal doorknob and received an unpleasant electric shock?
Sent 14: The reason you get a shock is because of moving electric charges.
Sent 15: Moving electric charges also create lightning bolts.
Sent 16: It is also the same reason electric current flows through cables and wires.

Question: When you approach a friends house, what is the first thing you do before entering? (true/0)

Question: What is the price you pay after wiping your feet on the piece of carpet and you reach for the brass door handle? (true/1)

Question: You get shocked because of moving electric charges and moving electric charges also creates what? (true/2)

Paragraph: (Science-textbook/science-g4-38.txt)
Sent 1: Mechanical energy is a combination of the energy of motion or position.
Sent 2: This type of energy describes objects that are moving or could move.
Sent 3: A moving ball can have energy from motion.
Sent 4: An arrow can also have the energy of motion.
Sent 5: Both are types of mechanical energy.
Sent 6: Can you think of some other examples?
Sent 7: Where does the energy of motion come from?
Sent 8: It comes from the energy created by position.
Sent 9: This energy is stored energy.
Sent 10: This means it is not moving yet, but it has the potential to move.
Sent 11: How can you store energy?
Sent 12: The arrow gains energy from the drawn bow.
Sent 13: As the arrow is released, the bow releases its stored energy and puts the arrow into motion.
Sent 14: Can you think of some other ways to store energy using position?

Question: Is an arrow released from a bow an example of mechanical energy? (true/0)

No
Yes

Question: What type of energy is released when a drawn bow releases an arrow? (true/1)

Question: Does stored energy require motion? (true/2)

Yes
No, it does not

Question: What kind of energy does a moving ball have? (false/3)

Question: What kind of energy do objects that are moving or could move possess? (false/4)

Question: What does stored energy mean? (true/5)

Question: What does stored energy have the potential to do? (false/6)

Question: What type of energy do a moving arrow or ball have? (false/7)

Question: Is an object with mechanical energy always moving? (false/8)

No
No, they can be still and have potential energy too
Yes
Yes, they are always moving

Question: What kind of energy is created by position? (false/9)

Question: What types of energy do a moving ball or flying arrow have? (true/10)

Question: Why is it possible for a moving ball to still have energy of position? (true/11)

Because it has to move potentially
Because it can move
Its energy is not released instantly
Because it has weight
Because it has mass
All objects have energy of position
The ball may still have the potential to move

Question: How is energy stored in a bow and arrow? (false/12)

Question: How can a ball that is not moving possess energy of position? (false/13)

It is because it has mechanical energy
It is mechanical
It gets it from thermal energy
If the ball is in a position where it could move, it has the stored energy of position
It is because it has potential to move
It gains it due to gravity

Question: What kind of objects can be described by mechanical energy? (true/14)

Question: What are two objects mentioned that can have energy from motion? (true/15)

Question: Why is mechanical energy considered a combination of the energy of motion and position? (true/16)

Because combined forces is always stronger than individuals
Because objects either move or could move
It is a historic convention
It is because the objects can or are moving
Because that's what makes it move
Because the objects are having potential and mechanical energy at the same time
The energy of motion actually comes from the energy created by position, which is stored energy. When the stored energy is released, the object is set in motion

Question: What type of energy is created by position? (false/17)

Paragraph: (Science-textbook/science-g5-18.txt)
Sent 1: An atom is the very smallest particle that still the elements properties.
Sent 2: All the atoms of an element are alike.
Sent 3: They are also different from the atoms of all other elements.
Sent 4: For example, atoms of gold are always the same.
Sent 5: It does not matter if they are found in a gold nugget or a gold ring.
Sent 6: All gold atoms have the same structure and properties.
Sent 7: For example, all gold atoms contain 79 protons.
Sent 8: One of golds unique properties is that it is a great conductor of electricity.
Sent 9: Gold is a better conductor of electricity than copper.
Sent 10: Gold is more rare and expensive than copper.
Sent 11: Copper is used in house wiring.
Sent 12: Gold is far too expensive.

Question: What are the major differences between Gold and Copper? (true/0)

Gold atoms are always the same; gold is more cheaper than copper
Gold is a better conductor and more rare and expensive than Copper
Gold cost more
Copper is better for use in electricity than gold
Copper cost more

Question: Would two atoms of gold have 79 protons each? (false/1)

No
Yes
Yes, as all atoms of gold have similar structures and are the same

Question: How are all the atoms of gold alike? (false/2)

They all contain 79 protons
All atoms within gold have the same structure and properties regardless of their physical shape
They all make up gold
They all contain 80 protons
All gold atoms have the same structure and properties

Question: How could we describe gold atoms? (false/3)

Gold atoms are always the same. It does not matter if they are found in a gold nugget or a gold ring. All gold atoms have the same structure and properties. For example, all gold atoms contain 79 protons
Gold atoms are always different
Gold atoms are the fanciest atoms
Gold atoms are always the same
All gold atoms have the same structure and properties

Question: What are atoms and their characteristics? (true/4)

An atom is the very smallest particle that still the element's properties, and all the atoms of an element are alike
An atom is a tiny metal object
An atom is the very bigest particle that still the elements properties
An atom is the very smallest particle that still the elements properties

Question: Why are atoms in one element different from those in another element? (false/5)

Atoms are what create different properties in an element
Atoms are the smallest units that contain elemental properties therefore, all atoms within one element are expressly alike to each other but different from those of another element
Atoms are all the same
This question is not answered in the text

Question: What are differences between gold and copper? (false/6)

Copper is more rare and expensive than gold and is a better conductor of electricity
Copper is more expensive than gold
Gold is more rare and expensive than copper and is a better conductor of electricity
Gold is more expensive than copper

Question: What is used in house wiring and why? (true/7)

Copper is used in house wiring because gold is far too expensive
Copper, because it's a good conductor
Gold
Copper
Gold because it's a good conductor

Question: What is gold used for and why? (false/8)

It's used as a conductor of electricity because gold is a good conductor
It cheap
Wiring
It's used for jewelry because it's pretty
It's rare
Gold is a good conductor; better it is used in house wiring

Question: Are two atoms of different elements the same? (true/9)

No
Yes
No, atoms of a single element are alike and differ from other elements

Question: How could we describe the atoms of an element? (true/10)

They are the smallest particles of an element. All the atoms of an element are alike and are also different from the atoms of all other elements
The very smallest particle that still the elements properties
What makes up an element
All atoms of an element are alike
All atoms of an element are different

Question: Why is copper used in house wiring even though Gold is a better conductor of electricity? (false/11)

Gold is too expensive
It is easier to work with
Copper is easier to acquire
Copper wiring is used in houses because even though gold would conduct electricity better it is far to rare and expensive
It is cheaper

Question: How is gold different from copper? (false/12)

Gold is more expensive and rarer than copper
Gold is cheaper
Copper is easier to acquire than gold
Gold is more expensive
Gold is a better conductor of electricity than copper and more rare and expensive than copper

Question: Why would a gold ring and a gold nugget have the same properties? (false/13)

Gold no matter what form is composed of atoms that contain the same elemental properties including the same structure, same properties and the same number of protons
Atoms of gold are all different
Atoms of gold are all the same
All gold atoms have the same structure and properties

Question: Do atoms of Gold differ? (false/14)

No
Yes
No, they all have the same structure and properties as all atoms of an element are the alike

Question: Why do we use copper instead of gold in house wiring? (false/15)

Gold is too expensive
God is more rare and expensive than copper. Gold is far too expensive
It's more expensive
Gold isn't good for wiring
It is less expensive

Question: What could be said about the properties of gold atoms? (false/16)

Atoms of gold are always the same no matter if they are found in a gold nugget or a gold ring
They're all the same
They're all different

Question: Would the atoms of gold in a nugget be different from the atoms of gold in a ring? (false/17)

No
Yes
No, as all the atoms of an element are alike and have the same structure and properties

Paragraph: (Science-textbook/science-g3-7.txt)
Sent 1: Force is a vector.
Sent 2: What then is a vector?
Sent 3: Think about how you would give directions to a friend.
Sent 4: You would not say, just walk half a mile.
Sent 5: The person may walk a half mile in the wrong direction!
Sent 6: More information is needed.
Sent 7: You may say, follow this particular road for a half mile.
Sent 8: You may say, look for the green house on Sumter St. In both examples, you provided a direction.
Sent 9: You also gave the distance.
Sent 10: In other words, you provided a vector.
Sent 11: You did not just give a distance.
Sent 12: Both pieces of information are needed to find a location.
Sent 13: This is just like describing forces.
Sent 14: To explain forces, both size and direction are needed.
Sent 15: Notice the girl in Figure 1.1.
Sent 16: She is pushing the swing away from herself.
Sent 17: Thats the direction of the force.
Sent 18: She can give the swing a strong push or a weak push.

Question: When you say, "Follow this particular road for a half mile," what kind of information are you providing in addition to distance? (true/0)

Direction
Force
Energy
Motion

Question: Why is more info needed to describe a vector? (false/1)

Needs a direction
May we go wrong direction
The person may defy gravity
The person may weigh more
The person may walk a half mile in the wrong direction
The person may be slower

Question: What two pieces of information does a vector provide? (true/2)

Question: What is the direction of force in which the girl is pushing a swing in Figure 1.1? (true/3)

Question: If you know a force magnitude already, then what else do you need in order to give you the knowledge of a vector? (true/4)

Question: What does a strong push or a weak push have to do with force? (true/5)

Connection of the force
Distance of force
Change it's velocity
They both have the same direction
The direction of the force is independent of the amount of force
Motion of the force
It explains the size of the force

Question: How far is the green house on Sumter St.? (true/6)

Question: What is a vector? (true/7)

Paragraph: (Science-textbook/science-g4-141.txt)
Sent 1: Light rays strike a reflecting surface.
Sent 2: They are then reflected back.
Sent 3: You can predict the angle of the reflected light.
Sent 4: Imagine a ball bouncing off a surface.
Sent 5: Light can do the same thing.
Sent 6: That is, assuming the surface is shiny.
Sent 7: So how do you know where light will go after it strikes a shiny surface?
Sent 8: It depends on how the light initially strikes the shiny object.
Sent 9: Light does not always go straight toward a surface.
Sent 10: Therefore, not all light bounces straight back.
Sent 11: Sometimes, light can hit a surface at an angle.
Sent 12: The angle at which it strikes the surface tells us how it will bounce off.
Sent 13: While light is different to a ball, they react in a similar manner.
Sent 14: Many sports rely on knowledge of reflection.
Sent 15: Pool players know a lot about reflection.
Sent 16: They take great care when they strike the pool ball.
Sent 17: They need it to go to a certain place.
Sent 18: They know the angle it will hit the side of the pool table.

Question: What determines how a ball will bounce off a surface? (false/challenge)

The angle at which it strikes the surface.
A shiny surface.
The temperature
The lighting conditions

Question: Do pool players use the principles of reflection to get a ball to go to a certain place? (false/additional)

Yes, they do.
Although they know alot of reflection they typically do not use the principles....
No

Question: What happens after light rays strike a reflecting surface? (false/challenge)

Question: When light hits the surface at an angle, what can the angle indicate? (false/challenge)

The angle can indicate how the light will bounce off the surface.
How the light will bounce off.
how much the light will shine
It says how shiny the object is.

Question: What information is useful to pool players when they strike a ball? (false/additional)

They need to know about reflection
Knowledge of reflection enables the pool player to hit the ball at a certain angle in order to go to a certain place.
The knowlege and patience to strike the pool ball at certain spot.
They need to know about swimming.
they need to know how to strike a ball in soccer

Question: What is needed for light to bounce off a surface? (false/additional)

For the surface to be shiny.
A strong and sturdy surface.
the surface needs many angles
The light has to be powertful enough

Question: What sport relies on knowledge of reflection? (false/additional)

Pool
Swimming
basketball
Swimming in a pool

Question: What can bounce off a surface similar to a ball? (false/challenge)

Light.
Pool table
Pool water
Shiny objects

Question: How does knowledge of reflection help pool players? (false/challenge)

You can predict the angle of the reflected light. They need it to go to a certain place. They know the angle it will hit the side of the pool table.
They can know the angle the ball will hit the side of the pool table
they can know the best position for them to play
They know how fast to hit the ball.
They need it before swimming in a pool.

Question: What has to be true in order to use a knowledge of reflection to help in sports? (false/challenge)

The surface is shiny on the area being used to judge the reflection.
A soft and blurry surface can lead to a good reflection.
The knowledge of ball sizes could help.
The knowledge of friction could help.

Question: Why doesn't all light bounce straight back when reflected off of a surface? (false/additional)

It depends on how the light initially strikes the shiny object. Light does not always go straight toward a surface. Therefore, not all light bounces straight back.
because light can disapear after some time.

Question: What type of people know alot about reflection? (false/additional)

Paragraph: (Science-textbook/science-g4-28.txt)
Sent 1: When a stream or river slows down, it starts dropping its sediments.
Sent 2: Larger sediments are dropped in steep areas.
Sent 3: Some smaller sediments can still be carried by a slow moving stream or river.
Sent 4: Smaller sediments are dropped as the slope becomes less steep.
Sent 5: Alluvial Fans In arid regions, a mountain stream may flow onto flatter land.
Sent 6: The stream comes to a stop rapidly.
Sent 7: The deposits form an alluvial fan.
Sent 8: Deposition also occurs when a stream or river empties into a large body of still water.
Sent 9: In this case, a delta forms.
Sent 10: A delta is shaped like a triangle.
Sent 11: It spreads out into the body of water.

Question: Where do larger sediments get dropped when a river or stream slows down? (true/0)

Question: When is a delta formed? (true/1)

When a stream or river empties into a large body of still water
A delta is formed as deposition occurs when a river or stream empties into a larger body of water
When smaller sediments are dropped in less steep slopes
When there is deposition
When In arid regions, a mountain stream may flow onto flatter land
Deposition also occurs when a stream or river empties into a large body of still water
When larger sediments are dropped in steep areas

Question: What is the process of dropping sediments by a stream or river called? (true/2)

Question: Are larger sediments dropped in steeper or less steep areas than smaller sediments in the same stream? (true/3)

Question: Where do smaller sediments get dropped when a river or stream slows down? (false/4)

Question: Are smaller sediments dropped before or after larger sediments? (false/5)

They are dropped at the same time
They are dropped after larger sediments
Neither
After

Question: When are deltas formed? (true/6)

When erosion occurs
When a stream or river empties into a large body of still water
When large deposits are dropped in steep areas
Arid regions, a mountain stream may flow onto flatter land and come to a rapid stop
Deposition also occurs when a stream or river empties into a large body of still water
When deposition occurs

Question: What might you find when a mountain stream flows onto flatter land and comes to a rapid stop in arid regions? (true/7)

Question: What type of feature is formed when mountain streams in arid regions flow onto flatter land and the stream comes to a rapid stop? (false/8)

Alluvial fan
Delta
Drop off
Sand bar

Question: What kind of shape does a river or stream emptying into the larger body of water sculpts the delta into? (true/9)

Paragraph: (Science-textbook/science-g5-79.txt)
Sent 1: Simply put, energy is the ability to a cause change.
Sent 2: Energy can cause many types of change.
Sent 3: Think about when you have a lot of energy.
Sent 4: You are able to do a lot of things.
Sent 5: When you dont have a lot of energy, you may sit around and do very little.
Sent 6: A similar thing happens to particles of matter as energy is added.
Sent 7: The more energy there is, the faster the particles of matter move.
Sent 8: Energy is also the reason you are able to move around.
Sent 9: In fact, matter is always in motion.
Sent 10: It can even change from one form to another.
Sent 11: For example, electrical energy can be converted into heat energy.
Sent 12: You see this every time you use the toaster.
Sent 13: Energy causes a change in matter when you lift your arm.
Sent 14: Energy can be used to move matter.
Sent 15: You use energy to take a step to move forward.
Sent 16: Thanks to energy, your body moves.
Sent 17: The energy of moving matter is called kinetic energy.

Question: What happens when someone has a lot of energy as compared to little energy? (false/0)

You are talkative as opposed to not talkative
kinetic energy
The faster particles move
Electrical energy
You are able to do a lot of things. When you don't have a lot of energy, you may sit around and do very little
Change
You move around a lot as opposed to a little

Question: Lifting your arm, walking and moving around are all forms of what type of energy? (true/1)

Question: Using a toaster is an example of what? (true/2)

Question: True or false. Matter is able to change forms despite, usually, not being in motion? (true/3)

True
False. Matter is always in motion
False

Question: What happens to particles with little energy as opposed to particles with a lot of energy? (false/4)

The more energy the faster the particles move
They become electrical energy
Particles with little energy move slow, while particles with a lot of energy move fast. The more energy there is, the faster the particles of matter move
Particles do not move as much
Change
They are converted
Particles move faster

Question: When you use energy to take a step forward, what is it called? (false/5)

Paragraph: (Science-textbook/science-g4-43.txt)
Sent 1: Energy often changes from one form to another.
Sent 2: For example, the drummer transfers motion to sound energy.
Sent 3: When the moving drumstick strikes the drum head, the drum starts to vibrate.
Sent 4: The motion of the vibrating drum head creates the sound you hear.
Sent 5: Any form of energy can change into any other form.
Sent 6: Frequently, one form of energy changes into two or more different forms.
Sent 7: Have you ever sat in front of a campfire?
Sent 8: What are two things you notice?
Sent 9: The fire creates light.
Sent 10: It is also warm by the fire, meaning it creates heat.
Sent 11: The energy of the fire comes from the stored energy in the wood.
Sent 12: The wood contains chemical energy.
Sent 13: As it burns, the chemical energy is changed into light and heat.
Sent 14: Not all chemical energy changes produce light and heat.
Sent 15: Our cars use gasoline as a fuel.
Sent 16: Gasoline contains chemical energy.
Sent 17: When our cars burn gasoline in their engines, it is converted into motion and heat.
Sent 18: When energy changes forms, energy is conserved.

Question: What form of stored energy fuels a fire? (true/0)

Chemical energy
Heat energy
Fire energy
Wood

Question: When you sit in front of a campfire, where does the energy of the fire come from? (true/1)

Stored energy in the wood
It comes from the heat and light it produces
It comes from the light it gives out
Energy stored in the wood
It comes from the chemical energy it inherently possesses

Question: The wood of a fire contains chemical energy that is transformed into what two other energies? (false/2)

Motion and heat
Light and heat

Question: Drummers transform chemical energy into what? (false/3)

Sound
Light energy
Motion to sound energy
Sound energy

Question: What type of energy does wood contain? (false/4)

Chemical energy
Energy of fire
Chemical

Question: What do wood and gasoline have in common? (true/5)

They contain chemical energy and they both burn
They both give out different forms of energies
They both cause motion
They are made of the same matter
They both have stored chemical energy
They both contain chemical energy
They contain chemical energy

Question: How is the sound of a vibrating drum produced by energy? (true/6)

The chemical energy gets transformed to sound energy
Vibrating drum head
The drummer strikes the drumhead, using motion to start the drum vibrating. The motion of the vibrating drum head is transferred to sound energy, which is what you hear
The motion of the vibrating drum causes the sound we hear

Question: Wood is transformed into which type of energy? (true/7)

Chemical energy
Light and heat energy
Light and heat
Heat

Question: How does a drummer transfer motion energy to sound energy? (false/8)

The drummer cause the drum to vibrate which causes the sound we hear
Vibrating drum head
Moving drumstick hits drum head causing vibration which is what is heard
He changes the chemical energy to sound

Question: What type of energy do cars use to move? (false/9)

Chemical energy
Heat energy
Gasoline as a fuel

Question: What is the stored energy in wood be turned into when burned in a campfire? (false/10)

Sound
Light and heat
Chemical energy is changed into light and heat

Question: How is burning wood in a campfire different from burning gasoline in a car? (false/11)

The chemical energy in wood burned in a campfire is converted to light and heat whereas in a car, the chemical energy in gasoline is converted to motion and heat
The former produces chemical energy whereas the latter causes motion
Burning wood produces light and heat whereas burning gasoline produces motion and heat

Question: The motion of a vibrating drum head creates what? (true/12)

Sound
Motion
Light

Paragraph: (Science-textbook/science-g4-6.txt)
Sent 1: Gravitational Potential Energy is affected by position.
Sent 2: Like the leaves on trees, anything that is raised up has the potential to fall.
Sent 3: It has potential energy.
Sent 4: You can see examples of people with gravitational potential energy in 1.5 Figure below.
Sent 5: Gravitational potential energy depends on two things.
Sent 6: It depends on its weight, because a large falling rock can do more damage than a leaf falling from a tree.
Sent 7: It also depends on its height above the ground.
Sent 8: Like the skateboarder, the higher the ramp, the faster he will be going when he reaches the bottom.
Sent 9: Like all energy, gravitational potential energy has the ability to do work.
Sent 10: In this case, weight has the potential to deliver a force.
Sent 11: More important for us is that it has the ability to cause change.
Sent 12: What kind of change you may ask?
Sent 13: Gravitational potential energy has the ability to cause motion.

Question: What kind of position would an object need to possess gravitational potential energy? (true/0)

The object would need to be in a raised up position; wherever an object has the potential to fall
The object would need to be right on the ground
Higher
On the ground
Above ground

Question: What does gravitational potential energy depend on? (false/1)

Height and weight
Weight and height above ground
Volume and material
Height and volume of the object

Question: What sort of change can gravitational potential energy cause? (false/2)

Tial energy has the ability to do work
Motion
Friction

Question: What are the two things gravitational energy depends on? (false/3)

Question: What is the change that Gravitational potential energy can cause? (false/4)

The change it causes is motion
Motion
Friction

Question: Name two examples of the effect of gravitational potential energy that are given in the paragraph. (false/5)

Skateboarder
Large falling rock
Leaves fall, skateboarder moves downwards
The greater damage a heavy tree branch can cause, and the speed a skateboarder can reach on a ramp
Leaves change color, skateboarder falls
Leave on tress

Question: What are two things that Gravitational Potential Energy dependent on? (false/6)

Motion and friction
Weight and height above ground
Height , weight
Gravitational Potential Energy is dependent on weight, and height above the ground

Question: Give an example of Gravitational Potential Energy (true/7)

Mountain
Leaves on trees flying in the wind
Leaves can fall from a tree and a skateboarder can fall from a ramp

Question: What affect does gravitational potential energy have on leaves? (false/8)

It gives it the potential to move
Gravitational Potential Energy
The can fall
They change color

Question: What are two things that effect the force of the fall? (true/9)

Kinetic Energy
Weight and height above ground
Raised up has the potential to fall
Volume and material
Height and weight of object that is falling

Question: What two things can gravitation potential energy do? (true/10)

Shrink and expand objects
Change , Motion
Ability to deliver a force and cause motion
Deliver a force and do work

Question: Why is the skateboarder, who is up on a ramp, able to move downward to the bottom of the ramp? (false/11)

It has gravitational potential energy
Because the skateboarder possesses gravitational potential energy which is causing motion
He is unstable

Question: What is the most important change gravitational potential energy can have? (true/12)

The ability to cause motion
Motion
Friction
Deliver make skateboarders move

Paragraph: (Science-textbook/science-g4-65.txt)
Sent 1: Renewable Energy Resource Sunlight Sunlight can be used to heat homes.
Sent 2: It can also be used to produce electricity.
Sent 3: This conversion is made possible by solar cells.
Sent 4: However, solar energy may not always be practical.
Sent 5: Some areas are just too cloudy.
Sent 6: Example Solar panels on the roof of this house generate enough electricity to supply a familys needs.
Sent 7: Moving Water Falling water can have a lot of energy.
Sent 8: Its energy can be converted into kinetic energy.
Sent 9: This energy can turn a turbine and generate electricity.
Sent 10: The water may fall naturally over a waterfall or flow through a dam.
Sent 11: A drawback of dams is that they flood land upstream.
Sent 12: They can also reduce water flow downstream.
Sent 13: Either effect may harm ecosystems.
Sent 14: Wind Wind is moving air.
Sent 15: It has kinetic energy that can do work.
Sent 16: Wind turbines change the kinetic energy of the wind to electrical energy.
Sent 17: Only certain areas of the world get enough steady wind.
Sent 18: Many people also think that wind turbines are noisy and not very nice to look at.

Question: What are the sources of kinetic energy (true/0)

Wind , water
Moving water and wind
Kinetic energy comes from either solar or wind power
Both wind and moving water create kinetic energy
The sources of kinetic energy are wind, moving water, and geothermal power
Kinetic energy comes from either moving water or from wind

Question: How does moving water make electricity? (true/1)

Electricity can be made by storing the water in batteries
Falling water can have a lot of energy which can be converted into kinetic energy that turns a turbine and generates electricity
Water can move a turbine that generates power
Water's energy can turn a turbine and magically result in electricity
Electricity can be made by taking the hydrogen out of moving water
Water can generate electricity by turning a turbine

Question: What are the drawbacks of dams (false/2)

The drawbacks of dams are some areas don't have enough water, and they can be noisy
Dams can flood land downstream and reduce water flow upstream
Flood land upstream and reduce water flow downstream
Dams can reduce water flow downstream and flood land upstream
Dams can flood land in some places and reduce water in others
Damage eco system

Question: What are some ways sunlight can be used? (true/3)

Sunlight can be used to produce radio waves and to produce electricity
It can be used for heat and for electricity
It can be used for heat and to make wind
Solar energy
Heat homes and produce electricity
Sunlight can be used to heat homes and to produce electricity
Produce electricity
Solar cells

Question: Why doesn't wind energy work for all situations?: (true/4)

Not all areas get enough steady wind
Wind turbines can kill migrating birds
Steady wind isn't available everywhere
Only certain areas of the world get enough steady wind. Many people also think that wind turbines are noisy and not very nice to look at
Wind turbines can reduce wind flow

Question: What are 3 sources of renewable energy (false/5)

Moving water, wind and the sun are sources of renewable energy
Renewable energy comes from moving water, the sun and petroleum
Sunlight, moving water, and wind
Wind , water and sunlight
Wind, water and coal are 3 sources of renewable energy
The sun, wind and water

Question: What can sunlight provide as a resource? (true/6)

Sunlight can provide heat
Sunlight can be used to produce electricity
Solar energy
It can heat homes and produce electricity
Sunlight can provide kinetic energy
Sunlight can provide wind

Question: What are some forms of renewable energy listed in the paragraph? (false/7)

Solar, water, and wind energy
Sunlight, waterfall , wind
The renewable energy forms listed are wind, nuclear and solar
Thermal, wind and water energy are listed
The renewable energy types listed are water, solar and wind
Wind, solar and water energy are listed

Question: What are three ways energy can be generated? (false/8)

It can be made from sunlight, the wind, and plant matter
Energy can be generated from wind, water, and microwaves
Sunlight, movement of water, and wind
It can be made from water, wind and sunlight
Energy can be generated through solar, water and wind power
Solar cells , water fall , wind turbines

Question: What can these forms of energy be used to produce? (true/9)

Both electricity and heat can be produced
Electricity and nuclear energy can be made
Or electricity
These forms of energy can produce heat and
Renewable Energy
These forms of energy can make electricity and water

Question: What are 2 things that limit the use of wind turbines (true/10)

Wind turbines aren't very reliable, and people think they're noisy
Noisy and not very nice to look at
Wind turbines aren't practical in areas that don't get enough steady wind, and some areas are too cloudy
Only certain areas of the world get enough steady wind and many people also think that wind turbines are noisy and not very nice to look at
People think turbines are noisy and ugly, and only certain areas get enough steady wind
Wind turbines can be limited by still air or wind that moves too fast

Question: What are some drawbacks of dams? (false/11)

Dams can flood land and reduce water flow
Dams can reduce water downstream and flood land upstream
Water may flood land or damage the waterfall
Dams can reduce water downstream and destroy wildlife
Harm eco system
They flood land upstream. They can also reduce water flow downstream. Either effect may harm ecosystems
Educe water flow downstream

Question: What are some shortcomings of wind turbines? (true/12)

Turbines are noisy and not very nice to look at
Wind turbines aren't very pretty and they can be noisy
Some people think wind turbines are loud and ugly
Only certain areas of the world get enough steady wind and many people also think that wind turbines are noisy and not very nice to look at
Some people think wind turbines smell bad and are too noisy
Wind turbines might not be nice to look at and they can cause fires

Question: What is the drawback of kinetic energy from hydro power? (true/13)

The drawback is that it may harm ecosystems
Hydro power can flood some land and reduce water in other places
Turbines are noisy and not very nice to look at
The hydro power dams are not very nice to look at
Flooding upstream, not enough water downstream
Hydro power dams can be noisy

Question: What are two different kind of energy discussed in the articles? (true/14)

kinetic energy
Solar and kinetic energy
It talks about nuclear and wind energy
Both solar and water energy are discussed
Solar energy
This article includes wind and solar energy
This article discusses solar and geothermal energy

Question: How does sunlight create electricity (true/15)

Sunlight creates electricity through storing kinetic energy
Sunlight creates energy through solar cells
Sunlight makes turbines turn which makes electricity
Solar cells are used to produce electricity from sunlight
Solar cells

Paragraph: (Science-textbook/science-g3-3.txt)
Sent 1: Sometimes traits can vary from parent to offspring.
Sent 2: These changes are due to mutations.
Sent 3: Mutations are a random change.
Sent 4: Mutations are natural.
Sent 5: Some mutations are harmful.
Sent 6: In this case, the organism may not live to reproduce.
Sent 7: The trait will not be passed onto offspring.
Sent 8: Others variations in traits have no effect on survival.
Sent 9: Can some mutations be good for a living thing?
Sent 10: Other mutations can have great benefits.
Sent 11: Imagine being the first moth that can blend into its background.
Sent 12: It would have a better chance of survival.
Sent 13: A living thing that survives is likely to have offspring.
Sent 14: If it does, it may pass the new trait on to its offspring.
Sent 15: Thats good news for the offspring.
Sent 16: The offspring may be more likely to survive.
Sent 17: Mutations are one way living things adapt to new conditions.

Question: Are mutations always harmful? (true/0)

No
No, they can also benefit a living being
Yes

Question: Can mutations have an effect on survival? (false/1)

Yes
Not at all

Question: Are mutations harmful or natural? (false/2)

They can be both
Harmful
Natural
Neither

Question: What would make offspring more likely to survive? (false/3)

Question: Are mutations good or bad? (true/4)

Some mutations are harmful and some can have great benefits
Always good
Bad
Depends

Question: What are mutations? (true/5)

Question: What happens with harmful mutations? (true/6)

The organism passes the trait to its offspring
The organism dies before reproduction
In harmful mutations, an organism will not be able to reproduce and therefore will not be able to pass this trait on to offspring
No change
No survival

Question: Is it natural for some traits to vary from parent to offspring? (true/7)

No
Yes
Not natural
Natural

Question: What can mutations enable? (false/8)

Question: What is the advantage of the death of organism with harmful mutations? (true/9)

Question: Do mutations always affect survival? (true/10)

No
Yes
Sometimes they have no effect

Question: What are mutations good for? (true/11)

Not good for anything
Mutations are good for a better chance of survival, and a way for living things to adapt to new conditions
Nothing
Varied traits that may help for survival
Killing an organism before it can reproduce
Picking up the worst traits

Question: What might cause a moth to be the first one to have blended in with its background? (true/12)

Living long enough to reproduce
A mutation
Very dominant trait
Bad trait

Question: Who are traits passed from parents to? (false/13)

To animals
The offspring
It's parents
New generation

Question: What is necessary to create the chance to pass traits on to potential offspring? (false/14)

Question: Do harmful mutations pass onto offspring? (true/15)

Never
Sometimes the parent does not live long enough to reproduce
The parent with harmful mutation always dies before it can reproduce
Sometimes

Question: Is a moth that is able to blend into its background more likely to have offspring than if it cannot blend into its background? (false/16)

No
Yes

Question: What causes a variance in traits throughout reproduction? (false/17)

Male and female have different genes
By luck
Offspring
Mutations

Question: What might prevent a harmful mutation from being carried on into another generation? (true/18)

Allowing the parent to live long enough to reproduce
The organism with the harmful mutation may not live to reproduce, and thus the mutation will not be passed on to offspring
Nothing can prevent it
Parent unable to reproduce
Parent dying before reproduction
Strong traits that help surviving

Question: What can cause traits to vary? (true/19)

Parents
Mutations
Blending in

Paragraph: (Science-textbook/science-g3-14.txt)
Sent 1: Rough surfaces create more friction than smooth surfaces.
Sent 2: Thats why cars have tires.
Sent 3: Its also why we use rubber mats in areas that might get wet.
Sent 4: In your bathtub, you may even use No-Slip tape.
Sent 5: No-slip is another way of saying the items has a lot of friction.
Sent 6: In Figure 1.9, the blades of the skates are very smooth.
Sent 7: Thats why you cant slide across ice with shoes.
Sent 8: The soles of your shoes are much rougher than skates.
Sent 9: The rougher surface of shoes causes more friction and slows you down.
Sent 10: Heavier objects also have more friction.
Sent 11: A heavy object presses down with more force.
Sent 12: The surfaces are held together more tightly.
Sent 13: This makes the surfaces harder to slide past each other.
Sent 14: Did you ever try to push something heavy across the floor?
Sent 15: Heavy objects are much harder to push than light objects.

Question: In order to slide across ice more easily, would you want something on your feet that had a smooth surface or a rough surface? (false/0)

Rough
Hard surface
A smooth surface
Smooth

Question: Why do heavier objects have more friction? (true/1)

A heavy object presses down with more force. The surfaces are held together more tightly, making the surfaces harder to slide past each other
Held down with more force to a surface which holds them together more tightly
Weight has invese relation with friction
Dresser

Question: What is harder to do when surfaces are held together more tightly? (false/2)

Surfaces harder to slide past each other
Remain still
Slide past each other
Slide

Question: When there is more friction, is it harder or easier to push an object across the floor? (true/3)

Easier
Yes
Harder

Question: Why do heavier objects create more friction? (false/4)

The surfaces are held together more tightly
A heavy object presses down with more force
Press down with more force
Fat

Question: Why do cars have tires? (false/5)

Because rough surfaces have more friction than smooth ones
Rubber creates friction
To go faster
To create friction and hold them to the road
To make them slippery
Rough surfaces create more friction than smooth surfaces
Beacause, Rough surfaces create more friction than smooth surfaces

Question: Why do we use rubber mats in areas that might get wet? (true/6)

Because, Rough surfaces create more friction than smooth surfaces
Smooth surface
Rough surface creates friction

Question: How does a heavy object have more friction? (false/7)

Held more force to a surface which holds them together more tightly
It is heavy so it pushes down with more force
Smooth surface
Heavy objects are much harder to push than light objects

Question: Do ice skates provide much friction? (true/8)

Yes
No, It doesn't

Question: Why are heavy objects harder to push than light objects? (false/9)

They press down more so they don't slide as easy
Smooth surface
Heavier objects also have more friction

Question: Why can't you slide across an ice in your shoes the way you would in skates? (false/10)

The blades of the skates are very smooth
Take up more room
And The soles of your shoes are much rougher than skates
Rougher surface on shoes

Question: What property does the surface of a rubber mat have that prevents us from slipping in wet areas? (false/11)

Sticky
Creates friction
Tub
It has a rough surface

Paragraph: (Science-textbook/science-g5-34.txt)
Sent 1: Physical properties include the state of matter.
Sent 2: We know these states as solid, liquid, or gas.
Sent 3: Properties can also include color and odor.
Sent 4: For example, oxygen is a gas.
Sent 5: It is a major part of the air we breathe.
Sent 6: It is colorless and odorless.
Sent 7: Chlorine is also a gas.
Sent 8: In contrast to oxygen, chlorine is greenish in color.
Sent 9: It has a strong, sharp odor.
Sent 10: Have you ever smelled cleaning products used around your home?
Sent 11: If so, you have probably smelled chlorine.
Sent 12: Another place you might smell chlorine is at a public swimming pool.
Sent 13: The chlorine is used to kill bacteria that may grow in the water.
Sent 14: Other physical properties include hardness, freezing, and boiling points.
Sent 15: Some substances have the ability to dissolve in other substances.
Sent 16: Some substances cannot be dissolved.
Sent 17: For example, salt easily dissolves in water.
Sent 18: Oil does not dissolve in water.

Question: Name the three states of matter and give and name a gas that is in the air we breath to stay alive. (false/challenge)

Question: Why is chlorine used in our everyday lives and how? (false/additional)

kill bacteria
we use it to keep our pools clean
It kills germs and can be found in household cleaners and to keep pools germ free.
kill bacteria in water and it is mixed in pool
used as air freshener
used in breathing

Question: Name a sunstance that is odorless in all physical forms. (false/additional)

Question: According to this passage how do salt and oil differ when mixed with water? (false/additional)

salt dissolves in water, but oil don't
Salt dissolves in water and oil does not dissolve in water.
oil dissolves in water, but salt don't

Question: What do physical properties include? (false/challenge)

Question: What two gases are compared in the article? (false/additional)

Oxygen and Chlorine
hydrogen and oxygen
nitrogen and oxygen

Question: How are oxygen and chlorine different? (false/additional)

Oxygen is odorless and colorless. In contrast to oxygen, chlorine is greenish in color. It has a strong, sharp odor.
chlorine has a color and oxygen is colorless
one has an odor the other doesn't
Chlorine is colorless and Oxygen is greenish

Question: Which two contrasting substances properties to dissolve in water are discussed? (false/additional)

Oxygen and Chlorine
salt and oxygen
oil and salt
salt and iron

Question: What are the physical properties of matter? (false/challenge)

Question: What are some properties of Oxygen? (false/additional)

Question: What are the properties of Chlorine? (false/additional)

Question: Where would you find Chlorine? (false/challenge)

Question: Where are two places one could use chlorine? (false/challenge)

Question: What are the physical properties of matter, and how many primary states are there for matter? (false/challenge)

Physical properties of matter are also known as states of matter , which there are 3.
solid liquid and gas
3 states
solid and gas

Question: What are some secondary properties of matter? (false/challenge)

smell and hardness.
color and odor
color and chemical bonding

Question: give 1 example of matter that can be dissolved in water and one example of matter that will not. (false/challenge)

oil cannot be dissolved in water
salt can be dissolved in water
sand and oil

Question: Which gas is a major part of the air we breathe? (false/additional)

Oxygen
chlorine

Question: Which gas is found in cleaning products? (false/challenge)

Chlorine
oxygen

Question: Which of the mentioned physical states most likely lack the property of hardness? (false/challenge)

liquid and gas
Gas and Liquid
solid and gas

Question: Which gas mentioned in this paragraph is least likely to be green? (false/additional)

Oxygen
chlorine

Paragraph: (Science-textbook/science-g4-81.txt)
Sent 1: Relying on an animal to come by is risky.
Sent 2: A flower may have to wait a long time for the right animals to come by.
Sent 3: What if one never passes close enough to the flower?
Sent 4: Hoping the wind will blow is also risky for a plant.
Sent 5: What if the wind does not blow?
Sent 6: What if the blowing pollen does not land on another flower?
Sent 7: The wind could even blow the pollen over the ocean where it is wasted.
Sent 8: Giving free nectar is costly.
Sent 9: It is not a good use of the plants energy.
Sent 10: A plant uses a lot of energy to produce nectar.
Sent 11: Some animals may just drink the nectar.
Sent 12: They may not carry off any pollen in return.
Sent 13: To improve their chances, plants evolved special traits.
Sent 14: For example, they developed ways to hide their nectar.
Sent 15: Only certain animals were able to get at the plants hidden nectar.
Sent 16: These specific animals might be more likely to visit only flowers of the same species.
Sent 17: This was also a benefit for some animals.
Sent 18: Animals also evolved special traits to get to the nectar.

Question: Why is it risky for a plant to hope the wind will blow? (false/0)

The pollen may not land on another flower or it may blow the pollen over the ocean
It might not blow
It might take a lot of energy
It might ruin the pollen
Blowing wind causes plants to give away nectar
It might blow over water where it is wasted
It might rain
Pollen not landing on another flower

Question: What are ways of transferring pollen? (true/1)

Question: What is the purpose of hidden nectar? (false/2)

To spread pollen
To annoy animals
Allow only animals likely to pollinate another plant to get to the nectar
To keep it from being picked up by animals that won't spread the pollen correctly
To get animals to steal the whole plant
Only certain animals were able to get at the plant's hidden nectar because these specific animals might be more likely to visit only flowers of the same species
To keep the plant moist

Question: What might some animals do with a plant? (true/3)

Question: Why is giving free nectar costly? (true/4)

It takes money to make
Because animals like drink the nectar
Some animals just drink it
It is not a good use of the plants energy
It is not a good use of the plants energy and it uses a lot of energy to make the nectar
The pollen won't land where they want
A plant uses a lot of energy to produce nectar

Question: What problems could arise if a plant waits for the wind to help it? (true/5)

Question: Why is it risky for a flower to wait on an animal to come by? (false/6)

They might not carry away pollen
They may just drink the nectar
They might rip the plants leaves
They may not transfer pollen to another plant
The animal might not come by, or might just drink all the nectar
Animals don't take pollen with them
They might trample the plant
Animals visit too many flowers
They might avoid the plants when it rains

Question: What is risky for a plant with its nectar? (true/7)

Waiting for the wind to blow the right direction or waiting for the right animals to come by can be risky for the process of pollination
It might dry up
Relying on an animal to come by
Adapting new traits
It may not spread
It takes a lot of energy to make it
It is expensive

Question: How do animals pose a threat to pollination? (true/8)

They block the wind
Don't take pollen to another plant
They adapted
They may drink the nectar or not carry off pollen from the plant in return
Animals just eat the pollen
Drink nectar without transferring pollen
They may not carry off any pollen in return
They trample plants

Question: What do some plants provide that entices animals to visit them? (true/9)

Question: How do plants protect nectar? (true/10)

They developed ways to hide the nectar that only certain animals could get to
They hide their nectar
They develop special traits
Various ways, including hiding it
With animals
They make it bitter
They make it poisonous
By hiding it in other flowers
They make it nauseating

Question: Was every animal able to access a plant's nectar? (false/11)

This is a yes
No
No, only certain animals were able to get the nectar and the evolved special traits to be able to do so
No question ; there are no other options

Question: To improve their chances what traits did plants evolve? (false/12)

They developed ways to hide their nectar and only special animals were able to get it and these specific animals might be more likely to visit only flowers of the same species
Pollen
The ability to hide their nectar
Ways to hide their nectar
They made it bitter
Specific species
The traits of animals
They made it hot
They made it poisonous

Paragraph: (Science-textbook/science-g4-70.txt)
Sent 1: As food is pushed along, it undergoes digestion.
Sent 2: Digestion is the process of breaking down food into nutrients.
Sent 3: There are two types of digestion: mechanical digestion and chemical digestion.
Sent 4: Mechanical digestion occurs when large chunks are turned into smaller chucks.
Sent 5: Perhaps not surprisingly, this happens when you chew your food.
Sent 6: Once you swallow the food, your stomach also does some of this work.
Sent 7: Chemical digestion occurs when food is broken down into useful nutrients.
Sent 8: This is a chemical process that begins as you start to chew your food.
Sent 9: The saliva in your mouth starts this process.
Sent 10: Once you swallow, the acid in your stomach further breaks down food.
Sent 11: From the stomach, the foods moves into the small intestine.
Sent 12: In the small intestines, another set of chemicals goes to work.
Sent 13: Are you surprised?
Sent 14: Your small intestine, and not your stomach, does most of the work!

Question: What type of digestion happens when you chew your food? (false/0)

Molar digestion
Mechanical Digestion
Chemical digestion
Salivary digestion

Question: What bodily fluids aide in digestion? (false/1)

Question: What in your mouth starts the chemical digestion process? (true/2)

Tongue
Teeth
Saliva
Gums

Question: What organs help digestion? (false/3)

Question: What does mechanical digestion involve? (true/4)

Grinding your teeth
When food is broken down into useful nutrients
Mechanical digestion occurs when large chunks are turned into smaller chucks, this happens when you chew your food
Large chunks are turned into smaller chucks
Spitting out your food

Question: Where do foods move into from stomach? (true/5)

Question: Is the acid breaking down the food in your stomach an example of mechanical or chemical digestion? (true/6)

Mechanical digestion
Neither
Chemical digestion

Question: At what point does chemical digestion start? (true/7)

Once you swallow the food
When it enters the small intestine
As your small intestine starts to chew your food
When you start chewing
When it enters the mouth
When it enters the stomach
When you chew the food

Question: What is mechanical digestion? (false/8)

Use a tube to eat
Occurs when large chunks are turned into smaller chucks, done by chewing
A chemical reaction
Small chunks are turned into smaller chunks
Occurs when large chunks are turned into smaller chucks
The use of chemicals to break down foods
Large chunks are turned into smaller chucks

Question: What is digestion? (false/9)

A chemical reaction
Food is broken down into useful nutrients
The process of breaking down the small intestine into nutrients, through mechanical and chemical means
Food disappears
Is the process of breaking down food into nutrients
Saliva in your mouth starts this process
The acid in your stomach further breaks down food

Question: What is chemical digestion, and where does it occur? (true/10)

It occurs in the stomach
Food is broken down into useful nutrients
Occurs when food is broken down into useful nutrients, it occurs in the stomach and mouth
When food debris is passed out of the body, digestive track
When oxygen is separated from the air we breathe, in the lungs
Occurs when food is broken down into useful nutrients in the mouth, stomach, and small intestines
Occurs in the mouth
Large chunks are turned into smaller chucks
When large chunks of food are reduced to small chunks in the mouth

Paragraph: (Science-textbook/science-g4-44.txt)
Sent 1: Energy is stored in chemical compounds.
Sent 2: This energy is called chemical energy.
Sent 3: Chemical energy is a form of potential energy.
Sent 4: When bonds between atoms are broken, energy is released.
Sent 5: The wood in fireplaces has chemical energy.
Sent 6: The energy is released as heat and light when the wood burns.
Sent 7: Most living things get their energy from food.
Sent 8: When food molecules are broken down, the energy is released.
Sent 9: It may then be used to do work, like playing ball or studying science.
Sent 10: If you have ever heard, "Eat a good breakfast", thats why.
Sent 11: You need energy to do things during the day.
Sent 12: To do those things you need energy.
Sent 13: You get your energy from the food you eat.
Sent 14: That energy is stored in your body until you need it.
Sent 15: How did you get to school today?
Sent 16: If you walked, you used chemical energy from the food you ate.
Sent 17: What if you rode the bus or were driven in a car?
Sent 18: Where did that energy come from?

Question: How is the energy from potential energy released? (false/0)

Question: What kind of energy is stored in chemical compounds? (true/1)

Question: Does food have potential energy? (false/2)

Maybe
Yes

Question: What type of energy does wood have? (true/3)

kinetic energy
Chemical energy
Solar energy
Convection energy

Question: When energy is released as heat and light from wood, what happens to the atoms in the wood? (true/4)

Question: In order for you to walk, what happens to bonds between atoms? (true/5)

Question: Where do people get their energy (true/6)

Question: Does wood have potential energy? (false/7)

Yes
Sometimes

Question: What is released when chemical compounds break down? (true/8)

Paragraph: (Science-textbook/science-g3-12.txt)
Sent 1: You know that friction also causes heat.
Sent 2: Think about when you rub your hands together.
Sent 3: It is friction that makes them warm.
Sent 4: But why does this happen?
Sent 5: Friction causes the molecules on rubbing surfaces to move faster.
Sent 6: Faster moving particles have more heat energy.
Sent 7: Heat from friction can be useful.
Sent 8: Can you think of other places where you might find friction?
Sent 9: Friction also lets you light a match.
Sent 10: Heat from friction can also cause problems.
Sent 11: It can cause a car to overheat.
Sent 12: To reduce friction, oil is added to the engine.
Sent 13: Oil coats the surfaces of moving parts.
Sent 14: This coating of oil makes them slippery.
Sent 15: When things are slippery there is less friction.
Sent 16: Have you ever seen a sign that says, slippery when wet?
Sent 17: This too has to do with friction.
Sent 18: Water, like oil, can reduce friction.
Sent 19: The wet surface may allow your shoes to slide more easily.

Question: What would happen if all the oil leaked out of a running car engine? (true/0)

Question: What problem can friction cause? (false/1)

Question: Why do rubbing your hands make them warm? (true/2)

Due to friction
Friction
Friction causes molecules on the surface to move faster and faster molecules have more heat energy
Mass
From chemical reaction
Because of friction making the particles move faster
From electric current
From mechanical reaction
Moving hands

Question: How does oil reduce friction between moving car parts? (false/3)

Question: Do particles rubbed against a slippery surface move faster or slower? (true/4)

Moving
Faster
Slower

Question: What can happen in a car when there is too much friction? (false/5)

Question: What is friction? (true/6)

A chemical reaction
Friction causes the molecules on rubbing surfaces to move faster
Friction causes molecules to move faster in order to create heat energy
Friction causes the molecules on rubbing surfaces to move faster. Faster moving particles have more heat energy
The exchange of molecules
Friction destroys molecules
The force that holds things to earth

Question: Why do your hands become warmer when you rub them together? (false/7)

Due to friction
Because of friction
The friction produced by rubbing them together causes molecules to move faster, and faster moving molecules have more heat energy
From chemical reaction
From electric current
Because of friction making the molecules move faster
Because of mass
From mechanical reaction
Moving hands

Question: What can be done to prevent friction problems in engines? (true/8)

Question: Can oil reduce the amount of heat that is produced from the moving parts of a car? (true/9)

Yes
Sometimes
Can cause overheat

Question: What happens when you rub your hands together? (true/10)

Question: If you try to warm your hands by rubbing them together when they are wet, will they warm up as well as rubbing them together when they're dry? (true/11)

No
Sometimes

Question: Are you likely to experience more friction walking on a surface covered in oil or water than on a dry surface? (true/12)

Surface covered in oil or water
Dry surface
Oil friction

Paragraph: (Science-textbook/science-g5-46.txt)
Sent 1: Living things need non-living matter as well as energy.
Sent 2: What do you think matter is used for?
Sent 3: One thing is to build bodies.
Sent 4: They also need it to carry out the processes of life.
Sent 5: Any non-living matter that living things need is called a nutrient.
Sent 6: Carbon and nitrogen are examples of nutrients.
Sent 7: Unlike energy, matter is recycled in ecosystems.
Sent 8: You can see how in Figure 3.11.
Sent 9: Decomposers release nutrients when they break down dead organisms.
Sent 10: The nutrients are taken up by plants through their roots.
Sent 11: The nutrients pass to primary consumers when they eat the plants.
Sent 12: The nutrients pass to higher level consumers when they eat lower level consumers.
Sent 13: When living things die, the cycle repeats.

Question: What is the beginning of the life cycle? (true/0)

Carbon
Decomposers release nutrients when they break down dead organisms
Decomposition

Question: Non-living matter in living things is called nutrients and a couple of these nutrients are what? (false/1)

Decomposers
Carbon
Nitrogen
Carbon and nitrogen

Question: Name an example of a nutrient and what it can do. (false/2)

Question: Which organisms allow plants to absorb nutrients from their roots? (true/3)

Composers
Decomposers

Question: What are two things matter is used for? (true/4)

Question: Are carbon and nitrogen considered living or non-living? (false/5)

Living
Non-living

Question: How are nutrients recycled? (true/6)

In factories
When taken up into plants through the roots, and later eaten
Through death

Question: How are the nutrients processed? (false/7)

Through the roots
The roots take up the nutrients they are passed on to those that eat the plants and then are passed to higher level consumer who eat the lower ones
By eating

Question: Describe this scenario of recycling nutrients in an example. (true/8)

I can place plant food in the soil where my tomato plants grow. A rabbit comes along and eats the tomato. A hunter kills the rabbit for food and eats it
Living things die and go extinct as a result of interaction with other animals
Nutrients pass to primary consumers
Nutrients pass through consumers

Question: Can you name something that matter is used for? (true/9)

Carry out process of life
Building bodies
To carry out life processes,among other things
Decomposition

Question: What happens to nutrients when the decomposers use them to break down dead organisms? (true/10)

Disapear
Take up by plants
The nutrients are taken up by plants through their roots, pass to primary consumers when they eat the plants, and pass to higher level consumers when they eat lower level consumers

Question: What is one thing non-living matter used for? (false/11)

Build bodies
Carry out life process
Fishing
Hunting

Question: Name living or nonliving things that uses energy (true/12)

Question: What can matter be used to build? (false/13)

Bodies
Roots

Question: What do living things need? (false/14)

Question: What do living things use non living matter for? (false/15)

Question: What happens so plants can take nutrients in through their roots? (false/16)

Dead organisms decompose and release nutrients
Nutrients pass to primary consumers
Decomposers release nutrients

Paragraph: (Science-textbook/science-g4-35.txt)
Sent 1: Flowing water causes sediment to move.
Sent 2: Flowing water can erode both rocks and soil.
Sent 3: You have already learned that materials can dissolve in water.
Sent 4: With enough time, even rocks can be dissolved by water.
Sent 5: This process happens really slowly.
Sent 6: It may take over a million years to dissolve a rock.
Sent 7: It doesnt matter how big the rock is.
Sent 8: With enough time, flowing water can dissolve it.
Sent 9: Moving water also has the ability to move small pieces of rock and soil.
Sent 10: How can water move a rock?
Sent 11: Doesnt it need energy?
Sent 12: Of course, water gets its energy because it is moving.
Sent 13: Moving water has kinetic energy.
Sent 14: Things that have more energy can do more work.
Sent 15: When water stops moving it will have no energy.
Sent 16: It will no longer be able to move the rock and soil.
Sent 17: When this happens the rock and soil will settle to the bottom of the calm water.
Sent 18: Scientists call this process deposition.

Question: What is the process called when water is no longer able to move? (true/0)

Question: Why can water that is moving more do more work than water that is moving less? (true/1)

Water that is moving more has more kinetic energy; things that have more energy can do more work
Things that have more energy can do more work
Water that moves more has more kinetic energy
Water that is moving more has less energy
Water that moves more has less kinetic energy

Question: Does water have kinetic energy? (false/2)

Moving water has kinetic energy
No
Calm water have kinetic energy
Yes
Water gets its energy because it is moving and moving water has kinetic energy

Question: Is energy required for water to move a rock? (false/3)

No
Yes water has kinetic energy
Yes
No water has no energy

Question: Would deposition of or the moving of a particular rock take more energy? (false/4)

Deposition of rock
No
Yes
Moving of the rock takes more energy
The moving of a rock would take more energy than the deposition of that rock

Question: What is it called when rock and soil settle to the bottom of calm water? (true/5)

Deposition
Loss energy
kinetic energy
Process deposition

Question: What happens when water stops moving? (false/6)

Water gains kinetic energy
It gain energy
It will have no energy and it will no longer be able to move the rock and soil
When water stops moving it will have no energy

Question: Does it matter how big the rock is? (false/7)

No
It doesnt matter how big the rock is
The rock have to be small
Yes

Question: What does flowing water cause? (false/8)

Flowing water causes stream to boil
Flowing water causes rock deposition
It causes sediment to move and can erode both rocks and soil
Flowing water causes sediment to move

Question: Does moving water have kinetic energy? (false/9)

No
Moving water has kinetic energy
No it does not have kinetic energy
Yes

Question: How long might it take for water to dissolve a rock? (false/10)

Few days
About ten years
It may take over a million years to dissolve a rock
It could take over a million years

Question: How can water move a rock? (true/11)

By its potential energy
By using surface tension
Energy
Water splash against rock
Moving water has kinetic energy.so,it moves the rock with the energy

Question: What are some things flowing water causes? (false/12)

Flowing water can lift the rocks
Flowing water causes sediment to move
Flowing water causes sediment to move. Flowing water can erode both rocks and soil
Power of energy
Sediment to move and erosion of both rocks and soil

Question: How long does it take for water to dissolve rocks? (true/13)

It will take about ten years
It can take over a million years to dissolve a rock as the process happens very slowly
Few days
It may take over a million years to dissolve a rock
Over a million years

Paragraph: (Science-textbook/science-g5-81.txt)
Sent 1: The idea that Earth is a magnet is far from new.
Sent 2: It was first proposed in 1600 by a British physician named William Gilbert.
Sent 3: Knowing it acts like a magnet is one thing.
Sent 4: Knowing why it acts like a magnet is more difficult.
Sent 5: In fact, finding out why is a fairly recent discovery.
Sent 6: To find out why required new technology.
Sent 7: It was the seismograph that made it possible to learn why the Earth acted like a magnet.
Sent 8: Seismograph are used to study earthquakes.
Sent 9: By studying earthquake waves they were able to learn about Earths interior.
Sent 10: They discovered that Earth has an inner and outer core.
Sent 11: The outer core consists of liquid metals, mainly iron and nickel.
Sent 12: Scientists think that Earths magnetic field is generated here.
Sent 13: It is caused by the motion of this liquid metal.
Sent 14: The liquid metal moves as Earth spins on its axis.

Question: Where do scientists think the Earth's magnetic field is generated? (true/0)

Outer core. The outer core consists of liquid metals, mainly iron and nickel. Sent 12: Scientists think that Earths magnetic field is generated here
The idea that Earth is a magnet is far from new
In its outer core
Inner core

Question: When was it first suggested that Earth was a magnet? (true/1)

1890
Recent discovery
In 1600

Question: What technology made it possible to test the Earth's magnetic properties? How were scientist able to use this machine to study this phenomenon? (true/2)

Earth has an inner and outer core. The outer core consists of liquid metals, mainly iron and nickel. Scientists think that Earths magnetic field is generated here
Tomograph, analized infrared images
Seismograph, studied earthquake waves
Seismograph, Seismograph are used to study earthquakes. Sent 9: By studying earthquake waves they were able to learn about Earths interior
It was the seismograph that made it possible to learn why the Earth acted like a magnet. Seismograph are used to study earthquakes. By studying earthquake waves they were able to learn about Earths interior

Question: Why was William Gilbert unable to explain prove theory that the Earth acts like a magnet in 1600? (true/3)

Knowing it acts like a magnet is one thing. Sent 4: Knowing why it acts like a magnet is more difficult. To find out why required new technology
There was no appropriate technology
Gilbert could not prove his theory because seismograph technology required see the Earth's interior was not yet developed
Humanity was not ready to accept his explanation
Seismograph are used to study earthquakes

Question: How does the liquid metal within the Earth's core generate a magnetic field? (true/4)

It is caused by the motion of this liquid metal
By nuclear reacations
They discovered that Earth has an inner and outer core
The liquid metal in the outer core moves as the Earth spins generating a magnetic field
It moves

Question: How did they learn why the Earth acts like a magnet? (true/5)

A seismograph made it possible to learn why the Earth acted like a magnet because by studying earthquake waves they were able to learn about Earth's interior
The idea that Earth is a magnet
By studying earthquake waves they were able to learn about Earths interior
By analyzing earthquake waves
By analyzing Earth core images

Question: What technology allowed scientists to determine why the earth acts like a magnet? (false/6)

Liquid metals
Seismograph
Tomograph

Question: What do we know and don't about the Earth and magnets? (false/7)

There are always unanswered questions
By studying earthquake waves they were able to learn about Earths interior
Earth is a magnet and why it acts like a magnet is more difficult
We know it acts like a magnet but not why it acts like a magnet
Everything

Question: How is the magnetic field generated? (true/8)

By nuclear reactions in Earth inner core
Earth's magnetic field is generated in the outer core by the motion of this liquid metal
It is caused by the motion of this liquid metal
Earth spins on its axis

Question: When the Earth spins, what are the main liquid metals it is causing to move? (true/9)

Magnet
Iron and nikel
Iron and nickel
Steel and bronze

Question: What are the major parts of the Earths core and how do they differ? (false/10)

Nucleus and membrane
Earth has an inner and outer core.The outer core consists of liquid metals, mainly iron and nickel
The major parts of Earth's core are the inner or solid metal core and outer liquid metal core
Inner and outer core
The liquid metal moves as Earth spins on its axis

Question: Were seismographs available in 1600? (false/11)

No
Yes
No, finding out why is a fairly recent discovery

Question: What do scientists think to be the immediate cause of how Earth's magnetic field is generated? Choose the relevant options (false/12)

Motion of liquid metals
They discovered that Earth has an inner and outer core
They think the magnetic field is generated by the motion of the liquid metal in the Earth's outer core
Studying earthquake waves they were able to learn about Earths interior
Gravitational waves

Question: Does the earth have magnetic properties? If so when was this idea proposed? (true/13)

Yes, in 1600
Yes,1890
The idea that Earth is a magnet is far from new. Sent 2: It was first proposed in 1600
Knowing why it acts like a magnet is more difficult
The idea that Earth is a magnet is far from new. It was first proposed in 1600 by a British physician named William Gilbert

Question: Where do scientists think the earth's magnetic field is generated? (false/14)

The outer core that consists of liquid metals, mainly iron and nickel
Inner core
Earths interior
The outer core

Question: How does Earth create its magnetism? (true/15)

It is caused by the motion of liquid metal
Earth has an inner and outer core. consists of liquid metals, mainly iron and nickel.Earths magnetic field is generated here
They discovered that Earth has an inner and outer core. The outer core consists of liquid metals, mainly iron and nickel. Scientists think that Earths magnetic field is generated here
It is caused by gravitational waves
Seismograph are used to study earthquakes

Question: What did William Gilbert first speculate in 1600? (true/16)

That Earth is billion years old
That Earth has magnetic field
The idea that Earth is a magnet is new
Seismograph are used to study earthquakes

Paragraph: (Science-textbook/science-g3-33.txt)
Sent 1: Have you ever seen an egg?
Sent 2: Some animals do not have live births.
Sent 3: Instead, they lay eggs.
Sent 4: The eggs contain the embryo.
Sent 5: The embryo matures in the egg.
Sent 6: With time, it will hatch.
Sent 7: Some animals hatch and do not need care from their parents.
Sent 8: They are ready to live on their own.
Sent 9: Other animals will still need the care of their parents.
Sent 10: Sea turtles break out of their shells.
Sent 11: They immediately walk to the ocean.
Sent 12: They do this with no help from an adult.
Sent 13: Birds stay in the nest for many weeks.
Sent 14: They are cared for by their parents.
Sent 15: They leave the nest when they are strong enough to fly.
Sent 16: Some animals give birth to live offspring.
Sent 17: Animals like horses, cows, and whales give live birth.
Sent 18: Their offspring are born looking like mini adults.

Question: What happens to baby birds? (true/0)

Birds stay in the nest for many weeks. Sent 14: They are cared for by their parents. Sent 15: They leave the nest when they are strong enough to fly
They stay in their nests for weeks, being cared for by their parents until they are strong enough to fly
They fly on their own immeadiately
They immediately walk to the ocean
They are taken care by adults till they develop ability to fly

Question: What are some examples of animals that are born looking like mini adults? (false/1)

Animals like horses, cows, and whales
Horses, cows, and whales
Sea turtles and birds
Sea turtles

Question: Give an example of an animal that needs the care of its parents after birth. (true/2)

Birds
Birds ,Sent 13: Birds stay in the nest for many weeks. Sent 14: They are cared for by their parents
Sea turtles

Question: How do sea turtles behave after being born? (true/3)

Sea turtles break out of their shells. Sent 11: They immediately walk to the ocean
Sea turtles break out of their shells and immediately walk to the ocean
They are cared for by their parents
They need help from adults
To walk to the ocean without any help from the adults

Question: What are the two kinds of hatching behavior? (false/4)

Some animals hatch and do not need care from their parents. Other animals will still need the care of their parents
Some are born like mini adults and others are like born as adults
Some animals hatch and do not need care from their parents. Sent 9: Other animals will still need the care of their parents
The embryo matures in the egg
Some animals hatch and do not need care from their parents, but others will still need the care of their parents

Question: What is an example of an animal that hatches from eggs and does not need the care of their parents? (true/5)

Birds
Sea Turtles
Sea turtles

Question: What can recently hatched sea turtles do? (true/6)

They depends on adults
They are cared for by their parents
They walk to the ocean without any help
They break out of their shells and walk into the ocean without any help from adults
They immediately walk to the ocean

Question: Give some examples of animals that have offspring that look like mini-adults. (true/7)

Horses, cows, and whales
Sea turtles and birds
Horses, cows, and whales give live birth. Sent 18: Their offspring are born looking like mini adults
Sea Turtles , birds

Question: How do young birds behave? (true/8)

They do this with no help from an adult
Birds stay in the nest for many weeks. Sent 14: They are cared for by their parents
Young birds stay in the nest for many weeks and leave the nest when they are strong enough to fly
They do not depend on adults
They depends on adults till they develop ability to fly

Question: Why are birds cared for many weeks before they leave the nest? (true/9)

They should be strong enough to fly
They are not strong enough to fly
They are unable to fly
They should be dying
They immediately walk to the ocean

Question: After hatching, how long do birds stay in their nests before leaving to learn to fly? (true/10)

They immediately walk to the ocean
For some years
They are cared for by their parents. Sent 15: They leave the nest when they are strong enough to fly
For many weeks

Question: Are birds cared for by their parents? (false/11)

No
Yes
Yes, Birds stay in the nest for many weeks. Sent 14: They are cared for by their parents
They do this with no help from an adult

Question: Do Sea Turtles need help from their families? (true/12)

No
Yes
No, Sea turtles break out of their shells. Sent 11: They immediately walk to the ocean
They are cared for by their parents

Question: What is an example of an animal that gives live birth? (true/13)

Horse, Cows, or Whales
Whales
Horses
Birds

Question: Name two examples of animals that lay eggs. (true/14)

Birds and Sea turtles
Cows, and whales
Humans and monkeys
Sea turtles and birds

Question: What is a characteristic of the offspring of animals that give live births? (false/15)

Their offspring are born looking like mini adults
They lay eggs
The offspring looks like mini versions of the adult animals

Question: Give an example of an animal that does not need the care of its parents after birth. (false/16)

Birds
Sea Turtles, Sent 11: They immediately walk to the ocean. Sent 12: They do this with no help from an adult
Sea turtles

Question: Do sea turtles need the care of their parents after hatching? (false/17)

No, Sea turtles break out of their shells. Sent 11: They immediately walk to the ocean. Sent 12: They do this with no help from an adult
No. Immediately after hatching, sea turtles walk to the ocean with no help from their parents
No
Yes
They are cared for by their parents

Paragraph: (Science-textbook/science-g4-24.txt)
Sent 1: You couldnt survive without your skin.
Sent 2: It has many important functions.
Sent 3: The main function of the skin is controlling what enters and leaves the body.
Sent 4: It prevents the loss of too much water from the body.
Sent 5: It also prevents bacteria and other microorganisms from entering the body.
Sent 6: The skin helps maintain a constant body temperature.
Sent 7: It keeps the body cool in two ways.
Sent 8: Sweat from sweat glands in the skin evaporates to cool the body.
Sent 9: Blood vessels in the skin dilate, or widen.
Sent 10: This action increases blood flow to the body surface.
Sent 11: This allows more heat to reach the surface.
Sent 12: The heat is then able to radiate off the body.
Sent 13: The opposite happens to retain body heat.
Sent 14: Blood vessels in the skin constrict, or narrow.
Sent 15: This decreases blood flow to the body surface.
Sent 16: This reduces the amount of heat that reaches the surface.
Sent 17: When this happens, less heat can be lost to the air.

Question: What prevents the loss of too much water from the body? (true/0)

Question: What happens when less heat reaches the surface of your skin? (true/1)

Question: What action do the blood vessels take to increase blood flow? (false/2)

Question: What kind of vessels in the skin dilate to help cool the body? (true/3)

Question: What do blood vessels do to retain body heat? (true/4)

Question: What happens when the heat reaches the surface of your skin? (true/5)

Question: What decreases blood flow to the body's surface? (true/6)

Question: What is different when something constricts as compared to when it dilates? (true/7)

Question: Is skin important and what are the main functions of the skin on your body? (false/8)

Yes, protect the body, prevent water loss, maintain temperature
Skin is very important. You could not survive without it and its main function is to control what enters and leaves the body
Yes the skin is important, its main function is controlling what enters and leaves the body, maintaining the body's temperature, preventing the body from losing too much water and preventing bacteria and other microorganisms from entering the body
No
Bullet proof
No the skin is not important, the skin's main functions are being visually appealing and absorbing bacteria
Just a dress
Prevents bacteria and other microorganisms from entering the body
Yes, constrict, dilate, heat

Question: Can skin prevent bacteria from entering the body? (true/9)

No
Bacteria co go inside
Yes
Prevents bacteria and other microorganisms from entering the body

Question: Whose loss from the body is prevented by the skin? (false/10)

Question: What are two ways in which the body cools down? (false/11)

Sweating and dilating blood vessels
One way is through the blood vessels constricting, and sweat
One way is through sweat from the sweat glands in the skin that evaporate to cool the body. The second is through blood vessels in the skin that dilate, or widen
Sweating and constricting blood vessels
Preventing water loss and constricting blood vessels
Sweat glands and blood vessels
Fan and ac

Question: Does the skin have any control over body temperature and if so in how many ways does it? (true/12)

Yes, and in 3 ways
Yes, in 5 ways
Air conditioner
Yes it controls body temperature by sweat and sweat gland to cool the body
Yes, three
Yes, the skin does help maintain a constant body temperature and it does in two different ways
Yes, two

Question: In how many ways does the skin help maintain body temperature? (false/13)

Question: What increases blood flow to the body's surface? (true/14)

Paragraph: (Science-textbook/science-g5-83.txt)
Sent 1: Earths magnetic field helps protect Earth and its organisms.
Sent 2: It protects us from harmful particles given off by the sun.
Sent 3: Most of the particles are attracted to the north and south magnetic poles.
Sent 4: This is where Earths magnetic field is strongest.
Sent 5: This is also where relatively few organisms live.
Sent 6: Another benefit of Earths magnetic field is its use for navigation.
Sent 7: People use compasses to detect Earths magnetic north pole.
Sent 8: Knowing this helps them tell direction.
Sent 9: Many animals have natural 'compasses' that work just as well.
Sent 10: Birds like the garden warbler in Figure 1.36 use Earths magnetic field.
Sent 11: They use it to guide their annual migrations.
Sent 12: Recent research suggests that warblers and other migrating birds have structures in their eyes.
Sent 13: These structures let them see Earths magnetic field as a visual pattern.

Question: What do birds use to help in migration? (true/0)

Question: Why do few organisms live on the North and South poles? (false/1)

Question: Name two benefits of Earths magnetic field. (true/2)

Question: How does Earth's magnetic field help humans? (false/3)

Question: How do garden warblers use the earth's magnetic field to guide animal migration? (false/4)

Question: What do the structures in a bird's eye allow them to do? (true/5)

Question: How do warblers and other migrating birds navigate (false/6)

Question: What are the benefits of the earth's magnetic field? (true/7)

Question: What do animals have naturally that people do not? (true/8)

Question: What is the purpose of a compass and what does it detect? (true/9)

Question: Where is the structure located, that warblers use to detect the magnetic fields of Earth? (true/10)

Question: Where is the earth's magnetic pull strongest? (false/11)

Question: According to this passage, what protects the organisms of Earth from harmful particles given off by the sun? (false/12)

Question: What works to detect Earth's magnetic north pole, telling direction besides people's compasses? (false/13)

Question: Where is Earths magnetic field strongest? (false/14)

Question: What is unique about the north and south magnetic poles? (false/15)

It holds the gravitational pull of the planet
Most particles are attracted to them. This is where Earths magnetic field is strongest. This is also where relatively few organisms live
Earths UV field is strongest
Earths center of gravity field is strongest
Where Earths magnetic field is strongest
It is the coldest
Annual migrations
Earths magnetic field is weakest
It is the warmest

Question: Is Earths magnetic field strongest in the East and West, or the North and South? (true/16)

North and Soutn
East and West
The North and South

Question: What species in this passage is mentioned to use use the Earths magnetic fields to guide its annual migration? (false/17)

Paragraph: (Science-textbook/science-g4-3.txt)
Sent 1: Imagine you are standing in a farm field in central Illinois.
Sent 2: The land is so flat you can see for miles and miles.
Sent 3: On a clear day, you might see a grain silo 20 miles away.
Sent 4: You might think to yourself, it sure is flat around here.
Sent 5: If you drive one hundred miles to the south, the landscape changes.
Sent 6: In southern Illinois, there are rolling hills.
Sent 7: Why do you think this is?
Sent 8: What could have caused these features?
Sent 9: There are no big rivers that may have eroded and deposited this material.
Sent 10: The ground is capable of supporting grass and trees, so wind erosion would not explain it.
Sent 11: To answer the question, you need to go back 12,000 years.
Sent 12: Around 12,000 years ago, a giant ice sheet covered much of the Midwest United States.
Sent 13: Springfield, Illinois, was covered by over a mile of ice.
Sent 14: Its hard to imagine a mile thick sheet of ice.
Sent 15: The massive ice sheet, called a glacier, caused the features on the land you see today.
Sent 16: Where did glaciers go?
Sent 17: Where can you see them today?
Sent 18: Glaciers are masses of flowing ice.

Question: What type of terrain is found South of Central Illinois? (true/0)

Question: What happens when you drive south? (false/1)

The landscape changes to rolling hills
The land is so flat you can see for miles and miles
The landscape changes
There are rock cliffs
The land is flat
There are no farm fields

Question: What couldn't the erosion have been caused by? (true/2)

Wind
The ground is capable of supporting grass and trees, so wind erosion would not explain it
Avalanches
Glaciers
A giant ice sheet covered much of the Midwest United States
Lakes
The erosion couldn't have been from wind or rivers
Big river

Question: What's the difference between central and southern Illinois? (false/3)

Central Illinois has rock cliffs and Southern Illinois is flat
Central Illinois has rolling hills and Southern Illinois is flat
In central Illinois, he land is so flat you can see for miles and miles.In southern Illinois, there are rolling hills
Central Illinois has mountains and Southern Illinois is flat
Central Illinois is mostly flat, and southern Illinois has rolling hills
Springfield, Illinois, was covered by over a mile of ice

Question: How big were the glaciers? (false/4)

Question: What features did the glaciers cause in Illinois? (true/5)

Question: Where are there no big rivers that may have eroded and deposited this material? (true/6)

Central Illinois
Grain silo
Southern Illinois
Farm field

Question: How is the landscape in Southern Illinois different from that in central Illinois? (false/7)

Around 12,000 years ago, a giant ice sheet covered much of the Midwest United States
Southern Illinois has rolling hills, Central Illinois is flat
In southern Illinois, there are rolling hills. and in central Illinois the land is flat
Southern Illinois has mountains and Central Illinois is flat
Southern Illinois has rock cliffs, Central Illinois has rolling hills
The landscape in the South features rolling hills that change only 100 miles from the flat lands
Southern Illinois is a plateau and Central Illinois is flat

Question: How long ago was Springfield, Illinois covered by over a mile of ice? (true/8)

Question: How does the geography of central Illinois differ from southern Illinois? (true/9)

Central Illinois has rock cliffs and Southern Illinois is flat
In southern Illinois, there are rolling hills. and in central Illinois the land is flat
Central Illinois has rolling hills and Southern Illinois is flat
Central Illinois is very flat, while southern Illinois has rolling hills
Central Illinois is flat and Southern Illinois has mountains
Springfield, Illinois, was covered by over a mile of ice

Question: How long ago did glaciers cover the area? (true/10)

Question: Water and wind erosion called the geographical features in Illinois. True or False? (false/11)

True
False

Question: What are glaciers and what affect do they have on land? (true/12)

Massive sheet of ice that causes changes in the landscape
The massive ice sheet, called a glacier, caused the features on the land
A large snow bank that changes the landscape
Glaciers are masses of flowing ice
Glacier are large sheets of ice that can cause the noticeable features on land, like flatness or rolling hills
A large snowbank that erodes soil
A large river that erodes soil

Question: In what part of Illinois might you be able to see a grain silo that is 20 miles away? (true/13)

Central Illinois
Springfield
Southern Illinois
Northern Illinois

Question: Where might you see a grain silo while standing in a farm field on a clear days? (true/14)

Question: What likely did not cause the changes in landscape in central Illinois? (false/15)

Question: What covered Illinois 12,00 years ago? (true/16)

Question: Why does Springfield have its features? (true/17)

Wind erosion
The ground is capable of supporting grass and trees, so wind erosion would not explain it
Tornado erosion
River erosion
A long time ago, it was covered by a mile thick sheet of ice
The massive ice sheet, called a glacier, caused the features on the land
A glacier

Question: What is the landscape in the Illinois farmlands? (true/18)

Paragraph: (Science-textbook/science-g4-99.txt)
Sent 1: Fossils can be used to match up rock layers.
Sent 2: As organisms change over time, they look different.
Sent 3: Older fossils will look different than younger fossils.
Sent 4: Some organisms only survived for a short time before going extinct.
Sent 5: Knowing what organisms looked like at certain times also helps date rock layers.
Sent 6: Some fossils are better than others for this use.
Sent 7: The fossils that are very distinct at certain times of Earths history are called index fossils.
Sent 8: Index fossils are commonly used to match rock layers.
Sent 9: You can see how this works in Figure 2.30.
Sent 10: If two rock layers have the same index fossils, then they're probably about the same age.

Question: What kind of fossils are used to date rock layers? (false/0)

Question: How are index fossils used? (true/1)

They are collectable items
To observe lifestyle changes of humans
To create chemical energy
Index fossils are commonly used to match rock layers; if two rock layers have the same index fossils, then they're probably about the same age
The fossils that are very distinct at certain times of Earths history and they date rock layers
They help to determineage of rock layers
None of these above

Question: What helps to date rock layers? (true/2)

Index fossils
Artifacts in the rock
Chemical abalysis of rock substances
Rock sediment
Fossils and knowing what organisms looked like at certain times
Stalagmites in caves
Marker fossils
Color
Knowing what organisms looked like at certain times also helps date rock layers

Question: How are fossils used to match up rock layers? (true/3)

They leave behind sediment
Fossils become less rare from layer to layer
The fossils that are very distinct at certain times of Earths history are called index fossils
They match the mineral deposits
As organisms change over time, they look different, so older fossils will look different than younger fossils
Rock layers of the same age have the same index fossils
They match the water levels

Question: What key do index fossils play in dating rock layers? (true/4)

The fossils that are very distinct at certain times of Earths history
These fossils are very distinct at certain times of Earths history and are commonly used to match rock layers
They show extinction force
They show hieroglyphs
They help to split rocks to layers
They show water levels
Rock layers of the same age have the same index fossils

Question: How can extinction help to date rock layers? (true/5)

Some animals only existed during certain time periods before becoming extinct. It helps to date that layer of rock where these animal fossils are present
Rock layers change color
It shows how many of a species lived
It shows young fossils
Organisms helped shape rocks and layers upon their extinction
Some organisms only survived for a short time before going extinct
It shows glaciers

Question: How are index fossils useful? (true/6)

They show us flora of the past
Knowing what organisms looked like at certain times also helps date rock layers, and index fossils are the fossils that are very distinct at certain times of Earth's history
The fossils that are very distinct at certain times of Earths history and help date fossils
For fuel
They help to determineage of rock layers
They are used to mark water levels
They are used to identify extinct animals
As markers for glacier activity

Paragraph: (Science-textbook/science-g4-29.txt)
Sent 1: A flood occurs when a river overflows its banks.
Sent 2: This might happen because of heavy rains.
Sent 3: Floodplains In very flat regions, flood water may spread out on the surface of the land.
Sent 4: It then slows down and drops its sediment.
Sent 5: If a river floods often, a floodplain develops.
Sent 6: A floodplain is an area where a thick layer of rich soil is left behind as the floodwater recedes.
Sent 7: Thats why floodplains are usually good places for growing plants.
Sent 8: They are very flat areas and they have very rich soils.
Sent 9: The Nile River valley is a great example of a floodplain.
Sent 10: Each year, the Nile River rises over its banks.
Sent 11: This floodwater carries a lot of sediment.
Sent 12: This sediment has been eroded off areas of land from upstream.
Sent 13: This sediment is dropped as the water slows down after spreading across the land.
Sent 14: What is left behind is a very rich soil.
Sent 15: Thats why crops can be raised in the middle of a sandy desert.
Sent 16: Natural Levees A flooding river often forms natural levees along its banks.
Sent 17: A levee is a raised strip of sediments deposited close to the waters edge.

Question: Where does the sediment in a flooding river come from, and where does it eventually come to rest? (true/0)

Question: What may cause a river to flood and overflow its banks? (true/1)

Question: What is the flood plain area of land good for if it floods often? (true/2)

Question: What might cause a river to overflow its banks? (false/3)

Question: What valley contains a river which rises over its banks each year? (false/4)

Question: What type of region might a floodplain develop into if a river floods often? (true/5)

Question: What makes the floodplains good for growing plants? (true/6)

Question: What is left behind in a flood plain after the water recedes? (true/7)

Question: What two geographic formation can be created from flooding rivers? (false/8)

Question: What forms the raised strip near the edge of a flooding river? (false/9)

Paragraph: (Science-textbook/science-g3-11.txt)
Sent 1: Take a look at this train in Figure 1.11.
Sent 2: It looks very futuristic.
Sent 3: What do you notice about it?
Sent 4: Did you notice that the train has no wheels?
Sent 5: How can a train have no wheels?
Sent 6: It doesn't need wheels.
Sent 7: It actually floats, or levitates, just above the track.
Sent 8: Magnets enable the train to do this.
Sent 9: This is not a normal train.
Sent 10: This is a maglev train.
Sent 11: The word maglev stands for magnetic levitation.
Sent 12: Because it has no wheels, there is no friction.
Sent 13: Some magnets hold the train up.
Sent 14: Other magnets are used to move the train forward.
Sent 15: This train can go very fast.
Sent 16: It can reach speeds up to 480 kilometers (300 miles) per hour!
Sent 17: Magnets are pretty cool.
Sent 18: What exactly is a magnet?
Sent 19: How is it able to exert such force?

Question: Is there a kind of train that has no wheels? (false/0)

Yes
Yes, the futuristic train has no wheels. They use magnets for movement ect
A maglev train has no wheels

Question: What do you observe about the train in Figure 1.11? (true/1)

Question: How do magnets work to keep a maglev train moving? (true/2)

Some magnets hold the train up and other magnets are used to move the train forward
They push against gravity
They give off waves of energy
They repel against the metal track
Levitating
The magnets hold up the train and help to levitate the train above the tracks

Question: What looks different about this futuristic train? (false/3)

Question: How does the train work without wheels? (false/4)

It actually floats, or levitates, just above the track with magnets
Magnets enable the train to levitate or float
Floats
It has air pressure holding it up
It is pulled by wind
It has wings
It uses magnets to levitates above the train tracks

Question: What do you notice about figure 1.11? (true/5)

The train has no conductor
Magnets
The train goes backwards
The train uses magnets to move
Figure 1.11 is a futuristic looking train, with no wheels that leviates above a track
The train is like a helicopter
The train has no wheels

Question: How does the train move? (false/6)

Question: What holds the train up and moves it forward? (true/7)

Question: Are maglev trains able to travel at high speed? (true/8)

No
Yes. Maglev Trains are able to travel at high speeds of up to 300 miles per hour
Yes
Maglev trains are very fast and can attain speeds up to 300 miles per hour
Yes. It can go fast

Paragraph: (Science-textbook/science-g5-28.txt)
Sent 1: Temperate climates have moderate temperatures.
Sent 2: These climates vary in how much rain they get and when the rain falls.
Sent 3: You can see different types of temperate climates in Figure 2.40.
Sent 4: Mediterranean climates are found on the western coasts of continents.
Sent 5: The coast of California has a Mediterranean climate.
Sent 6: Temperatures are mild and rainfall is moderate.
Sent 7: Most of the rain falls in the winter, and summers are dry.
Sent 8: To make it through the dry summers, short woody plants are common.
Sent 9: Marine west coast climates are also found on the western coasts of continents.
Sent 10: The coast of Washington State has this type of climate.
Sent 11: Temperatures are mild and theres plenty of rainfall all year round.
Sent 12: Dense fir forests grow in this climate.
Sent 13: Humid subtropical climates are found on the eastern sides of continents.
Sent 14: The southeastern U.S. has this type of climate.
Sent 15: Summers are hot and humid, but winters are chilly.
Sent 16: There is moderate rainfall throughout the year.
Sent 17: Pine and oak forests grow in this climate.

Question: What type of climate might you find in southeastern U.S.? (false/0)

Marine West Coast Climate
Humid subtropical climates are found there. Summers are hot and humid, but winters are chilly
Mediterranean
Humid subtropical climates
Temperate Climate
Mediterranean Climate

Question: What type of climate does the southern US have? (true/1)

Question: Which climate has dry summers and wet winters? (false/2)

Question: The Coast of Washington state has what type of climate? (false/3)

Question: How do the main plants differ between a Mediterranian climate and a Subtropical climate? (false/4)

Short woody plants- mediteranean Pine and oak forests -subtropical
All plants grow in both
Mediterranean Climates have tall lean trees
In Mediterranean Climates short woody plants are common and Subtropical Climates Pine and oak forests grow
A lot of short woody plants grow in a Mediterranian climate while pines and oaks prefer a Subtropical climate
Plants in Subtropical climates are made for frigid temperatures
Plants in the Mediterranean can handle lots of dry weather

Question: In what kind of climate is there plenty of rainfall year round? (true/5)

Question: Where are the characteristics of temperate climates? (true/6)

Vary in how much rain they get and when the rain falls
They have hot winters
They have humid and hot summers
They have frigid winters
Severe temperatures
Emperate climates have moderate temperatures
They have moderate temperatures
Moderate temperatures. These climates vary in how much rain they get and when the rain falls

Question: What are characteristics of a Mediterranean Climate:? (true/7)

Winters are cold and summers are wet
Temperatures are mild with lots of rainfall year round
Most of the rain falls in the winter, and summers are dry
Temperatures are mild, rainfalls are moderate, rain falls mostly in the winters and summers are dry
Temperatures are mild and rainfall is moderate
Heavy rain and snow

Question: In which kind of climate are the summers dry? (true/8)

Question: What are summers like in humid subtropical climates? (true/9)

Question: What are some characteristics of Subtopical climates? (true/10)

They are humid, summers are hot and humid, winters are chilly and there is moderate rainfall throughout the year
Temperatures are mild and rain is moderate
Mild summers and winters
Summers are cool and winters are slightly colder
Summers are hot and humid, but winters are chilly
There is moderate rainfall throughout the year

Question: What are the four types of climates discussed? (true/11)

Question: What type of climate do pine and oak forests grow in? (true/12)

Question: What kind of forests are supported in humid subtropical climates? (true/13)

Question: What are the characteristics of humid subtropical climates? (true/14)

There is heavy rainfall in winter
Hot and dry summers
There are frigid winters
There is chilly Summers
Summers are hot and humid, but winters are chilly
Summers are hot and humid, but winters are chilly. There is moderate rainfall throughout the year. Pine and oak forests grow in this climate
There is moderate rainfall throughout the year

Question: In what season does most of the rain fall in California? (true/15)

Question: What is the Mediterranean's rainfall like? (true/16)

Most rain falls in winter
Rainfall is moderate. Most of the rain falls in the winter, and summers are dry
There is little rainfall
Severe
There is heavy rainfall
Rain falls mostly in summer
Rainfall is moderate

Paragraph: (Science-textbook/science-g5-14.txt)
Sent 1: If you have a mass of 50 kg on Earth, what is your weight in newtons?
Sent 2: An object with more mass is pulled by gravity with greater force.
Sent 3: Mass and weight are closely related.
Sent 4: However, the weight of an object can change if the force of gravity changes.
Sent 5: On Earth, the force of gravity is the same everywhere.
Sent 6: So how does the force of gravity change?
Sent 7: It doesnt if you stay on Earth.
Sent 8: What if we travel to another planet or moon in our solar system?
Sent 9: Look at the photo of astronaut Edwin E. Aldrin Jr. taken by fellow astronaut Neil Armstrong in the Figure.
Sent 10: They were the first humans to walk on the moon.
Sent 11: An astronaut weighs less on the moon than he would on Earth.
Sent 12: This is because the moons gravity is weaker than Earths.
Sent 13: The astronauts mass, on the other hand, did not change.
Sent 14: He still contained the same amount of matter on the moon as he did on Earth.
Sent 15: If the astronaut weighed 175 pounds on Earth, he would have weighed only 29 pounds on the moon.
Sent 16: If his mass on Earth was 80 kg, what would his mass have been on the moon?
Sent 17: [Figure 3]

Question: How does the force of gravity change? (true/0)

It changes with change in weight
It changes with change in mass
The force of gravity changes depending on where you are in the solar system
The force of gravity never changes
This is because the moons gravity is weaker than Earths- it changes when you go to a place with less gravity

Question: Who are the astronaut that weighed less on the moon? (false/1)

Question: This unit of measurement can be used instead of pounds. What is it? (true/2)

Kilograms
Newtons

Question: How does the force of gravity affect your weight? (false/3)

The less you weight
It does not
It increases your actual weight
More the force of gravity, more the weight
It decreases your actual weight
More the force of gravity, less the weight
Gravity level alters the weight of an object because it is a force that pulls down causing a perceived change

Question: How is an astronaut's weight and mass different on the Moon? (false/4)

His weight is less, but his mass remains the same
An astronaut weighs more and has the same mass on the moon
Weight and mass are same
Weight and mass increase
The bigger weighs an astronaut has, the lower mass he will have on the moon
Mass is same but weight reduces by six times

Question: How does mass relate to weight? (false/5)

More mass is pulled by gravity with greater force; mass and weight are closely related but the weight of an object can change if the force of gravity changes
Weight depends on mass
Mass is needed for the pull of gravity
There are no similarities between mass and weight
They are closely related

Question: Why would a person's weight not change on Earth but it would on the moon? (true/6)

Because the pull of gravity is same everywhere on Earth but changes when on the Moon
The force of gravity is different between the Earth and the moon
The moon is smaller than Earth
Because the mass changes on Moon but does not change on Earth
The force of gravity is the same in all places of the Earth, however it is different from the gravitation force on the moon

Question: How does gravity change? (true/7)

Gravity never changes
It changes with weight
It changes with mass
It changes with planet
Gravity changes as you move to a different planet or moon
It's the same no matter where you are
On Earth it stays the same but it would be different on another planet or moon in our solar system

Question: Why is it that a man on the moon who weighs 175lbs would only weight 29 pounds on the moon? (false/8)

The force of gravity is less
Weight is affected by gravity therefore, weight is reduced on the moon because of the lesser gravity force
Because the gravity on the moon is weaker
Because the mass changes when on the moon
The force of gravity is more

Question: How are mass and weight related? (true/9)

Mass and weight are closely related but weight can change based on gravitational force while mass does not
Mass has nothing to do with weight
They are not related
Weight depends on mass
Mass and weight are similarly related

Question: Why does an astronaut weigh less on the moon than on earth (true/10)

The moon's gravity is stronger
Because the gravity is weaker
The moons gravity is weaker than earth's?
The moon's gravity is weaker
Because the gravity is stronger

Question: How do mass and weight differ? (true/11)

Mass changes and weight is constant
Mass and Weight are closely related but mass does not change based on gravity
Weight changes with the force of gravity
Mass changes with the force of gravity
Mass is constant whereas weight differs with gravity

Question: What's the difference between weight and mass? (false/12)

Weight never changes
Mass is the amount of matter and weight is the force of gravity on the object
Mass never changes
Weight is dependent on the force of gravity
Mass is constant but weight changes
Weight are in newtons but mass is constant and doesn't get measured in Newtons
Mass is dependent on the force of gravity

Question: Who were the first humans to walk on the moon? (true/13)

Question: Why did Edwin E. Aldrin Jr. and Neil Armstrong weigh less on the moon? (false/14)

Because the moons gravity is weaker than Earths. The astronauts mass, on the other hand, did not change
Because the gravity on the moon is stronger
Because the gravity on the moon is weaker
The force of gravity was less
The force of gravity was more
Because the mass changes on Moon

Question: When does the force of gravity change (true/15)

Paragraph: (Science-textbook/science-g4-2.txt)
Sent 1: You may be wondering, how can a glacier get so big?
Sent 2: Why does it move?
Sent 3: These are both good questions.
Sent 4: In the winter months, precipitation falls as snow.
Sent 5: This solid form of water builds up on the ground as long as the temperatures stay cold enough.
Sent 6: As the temperature rises, the snow starts to melt.
Sent 7: The frozen water changes state back into a liquid state.
Sent 8: Nearer the poles, summer does not last very long.
Sent 9: If the summer is long enough and warm enough, all the snow may melt.
Sent 10: This is what typically happens now.
Sent 11: The earth was a little cooler 12,000 years ago.
Sent 12: As a result, during the summer months, that amount of snow did not melt.
Sent 13: It may have only been an inch or so of snow that melted.
Sent 14: The following winter, snow fell on top of this left-over snow.
Sent 15: This next winters snowfall had a head start.
Sent 16: Year after year, the snow that did not melt became thicker and thicker.
Sent 17: Inch by inch the snow started to build up.
Sent 18: Over many years, layer upon layer of snow compacted and turned to ice.

Question: Do glacier's form quickly? (false/0)

No
Yes
No, they take many years to form, as they grow inch by inch at a time

Question: What state must water be in to become snow? (true/1)

Frozen
Liquid
Vapour
Solid

Question: What climate is needed for glaciers to form. (false/2)

Hot
Cold
Warm
Colder weather and shorter summers

Question: How do glaciers form? (false/3)

By accumulation of snow
Layer upon layer of snow compacted and turned to ice
During winter, precipitation falls as snow, and then this solid form of water builds up on the ground as long as the temperatures stay cold enough
By melting of ice
As the temperature rises, the snow starts to melt

Question: Was there snow in summer 12,000 years ago? (true/4)

Yes
Maybe

Question: Are temps always the same in glacier areas? (true/5)

No
Yes
Temperatures rise and fall depending on the time of year

Question: How does the snow turn into ice? (true/6)

By get accumulated and compacted
Layer upon layer of snow compacted and turned to ice
Year after year, the snow that did not melt became thicker and thicker, building up, compacting, and turning into ice
By freezing during summer
As the temperature rose, the snow started to melt

Question: What are two characteristics of glaciers? (true/7)

They are big, they move and they are cold
How it changes state back into a liquid state; how it becomes thicker and thicker
Small and liquid
They can't get so big
Not moving
Big and compact

Question: Why didn't most snow melt in the past? (false/8)

The earth was a little warmer
The earth was a little cooler 12,000 years ago, so it may have only been an inch or so of snow that melted
In past, summer was short
In past, winter was short
The earth was a little cooler

Paragraph: (Science-textbook/science-g3-6.txt)
Sent 1: What if two children push a swing at the same time?
Sent 2: Would the swing go higher?
Sent 3: Yes, together their force would be more.
Sent 4: It is common for forces to be combined.
Sent 5: Most objects on Earth have at least two forces acting on them.
Sent 6: Do you know what one of them is?
Sent 7: Of course, that force is gravity.
Sent 8: How many forces do you have on you right now?
Sent 9: Gravity pulls you down toward the center of Earth.
Sent 10: Your legs exert a downward force.
Sent 11: They hold you up against the pull of gravity.
Sent 12: Consider the example in Figure 1.3.
Sent 13: A book is resting on a table.
Sent 14: Gravity pulls the book downward.
Sent 15: It has a force of 20 newtons.
Sent 16: At the same time, the table pushes the book upward.
Sent 17: Its force is also 20 newtons.
Sent 18: The table opposes the pull of gravity.

Question: If two children push a swing at the same time, will the swing go higher? (false/0)

No
"Yes"

Question: What pulls you down? (false/1)

Net force
The force of gravity
Force
Gravity

Question: Does a swing go higher when two children push on it rather than just one child? (true/2)

No
Yes

Question: Is it rare for objects on Earth to have at least two forces acting on them? (false/3)

No
Yes
No. (It is common.)

Question: What forces acts on a book on a table? (true/4)

Gravity and the table
The table pulls the book upwards and the earth pulls it down
Median force
Gravity

Question: Do all objects on Earth have force? (false/5)

No
Yes
Yes, all objects have two forces and a book too has force

Question: Which forces affect a book resting on a table? (true/6)

Question: How many forces do you have on you right now? (true/7)

Question: At what level of force does the table oppose gravity? (true/8)

Slightly above than 20 newtons
20 newtons
10 newtons

Question: Give two examples of combined forces action on an object (false/9)

A book on a table exerts force on the table, the table exerts force on the book
Forces cannot combine together to act on an object
A table pushes up on a book on a table, and gravity pulls down
Two children pushing a swing, book resting on a table

Question: How many forces does an object have? (true/10)

One
At least two
Two forces acting on it
3

Question: What is the unit used for force? (false/11)

Newtons
Grams

Question: What direction is the force of a table on a book that is resting on it? (false/12)

Downwards
Upwards

Question: At what level of force does gravity pull the book downwards? (true/13)

More than 20 newtons
20 newtons
10 newtons

Question: What part of one's body can hold them up against the force of gravity? (true/14)

"Legs"
Core
Arms

Question: Why would a swing go higher when two children push it at the same time? (true/15)

There is more gravity on the swing
Together, their force would be more
There is more force acting on the swing

Question: How would gravity affect a book resting on a table/ (false/16)

It wouldn't
Gravity would push down on the book
Gravity would pull the book downward
The book would be in the air
The book would lay on the table from the force exerted

Paragraph: (Science-textbook/science-g4-109.txt)
Sent 1: For thousands of years, people have found fossils.
Sent 2: The fossils caused curiosity about Earths past.
Sent 3: How did these organisms live?
Sent 4: What type of world did they live in?
Sent 5: Fossils can tell us a lot about Earths history.
Sent 6: In ancient times, fossils inspired myths and stories.
Sent 7: These stories included tales of monsters and other incredible creatures.
Sent 8: What type of creature do you know that could inspire such stories?
Sent 9: Of course, dinosaur fossils were once mistaken for dragons bones.
Sent 10: Two thousand years ago, people discovered fossils in China.
Sent 11: At the time, they were thought to be dragon bones.
Sent 12: We know now that these were not bones, but fossils.
Sent 13: So what is the difference?

Question: How long have people been finding fossils and what did they inspire? (false/challenge)

Long ago, tales
People been finding fossils for thousands of years and they inspired myths and stories.
Thousands, myths and stories
Millions of years, inspired them with myths
60 years, inspired them with sense of art
Hundreds of years, inspired them with hope.
200, inspird them with music

Question: What did these stories consist of? (false/challenge)

Question: How long ago and in what country were the first documented fossils found? (false/additional)

They were found in China 2 thousand years ago and thought to have been bones.
2000 years ago in China
thousands of years ago in Asia
Two thousand years ago in China
500 years ago in Africa
100,000 years ago in North America
Africa, 1500 years ago
In 600 BC in America
Europe

Question: What questions did fossils invoke? (false/additional)

How did these organisms live?
What creature inspires similar stories?
What is the difference between bones and fossils?
How did these organisms live and what type of world did they live in?
What type of world did they live in?
Where were they from?
Did dinosaurs act like humans?
Were dinosaurs similar to birds?
Was Jurassic Park accurate?

Question: What did fossils do in ancient times? (false/challenge)

Question: What happened two thousand years ago? (false/challenge)

The first fossils were found
People discovered fossils in China that were thought to be dragon bones but they were dinosaur fossils.
Fossils were discovered in China
Wooly mammoths roamed Siberia
Dinosaurs rose again
Humans time traveled to that time period
Dragon bones were discovered
Earth was created
China was formed

Question: What questions do fossils cause humans to ask about? (false/additional)

Question: In ancient times what impact did fossils have on humans? (false/challenge)

Fossils inspired myths and stories. These stories included tales of monsters and other incredible creatures.
They were mistaken for bones
They inspired lots of stories
They inspired lots of research on dragons
They inspired lots of myths
They could come back to life if connected to a computer
They could kill a human upon a light touch
They were used as weapons

Question: What were some fossils originally thought to be? (false/challenge)

Question: What kind of things can fossils tell us? (false/additional)

How old the creatures were
History of the Earth, the organisms that used to live and what the world was like that these organisms lived in.
What type of world they lived in
Earth's history
Who your exact ancestor was
What types of dragons are there?
How to plan retirement
How the stock market will change

Paragraph: (Science-textbook/science-g4-23.txt)
Sent 1: The dermis is the inner layer of skin.
Sent 2: The dermis has blood vessels and nerve endings.
Sent 3: The nerve endings explain why your skin is sensitive.
Sent 4: You can sense pain, pressure, and temperature.
Sent 5: You cut your finger and it starts to bleed.
Sent 6: What has happened?
Sent 7: If your skin bleeds, it means you have cut the dermis layer and damaged blood vessels.
Sent 8: The cut really hurts.
Sent 9: It hurts because of the nerve endings in this skin layer.
Sent 10: The dermis also contains hair follicles and two types of glands.
Sent 11: Hair follicles are structures where hairs originate.
Sent 12: Each hair grows out of a follicle.
Sent 13: Hair passes up through the epidermis.
Sent 14: It then extends above the skin surface.
Sent 15: Oil glands produce an oily substance.
Sent 16: The oil is secreted into hair follicles.

Question: If you were to cut your finger, why does it hurt? (true/0)

Because you seriously hurt yourself
Because of the never endings
Because The dermis have nerve endings
Oil glandes
It hurts due to the nerve endings in the dermis layer

Question: How is the dermis related to skin sensitivity? (false/1)

Because it is sensitive
Because The dermis has nerve endings
Because The cut really hurts
There are nerve endings just below the dermis

Question: What is the relationship of hair to the dermis? (true/2)

The hair follicles are on top of the dermis
The hair grows out of the dermis
The dermis contains hair follicles, which is where hairs originate
The dermis contains oil glandes
The dermis contains hair follicles

Question: Why is the dermis a very important part of your skin makeup? (false/3)

It offers protection
To keep you warm
Because have oil glandes
It is important because it allows you to feel conditions with your skin
The dermis has blood vessels and nerve endings

Question: Why is my skin oily? (false/4)

Because there are oil glands in your skin
The cut really hurts
The dermis contains oil glands which release oil to the hair follicles
Because you poured oil on it
Because the dermis contains oil glands that produce an oily substance

Question: What is one type of gland found in the dermis? (true/5)

Epidermis
Tempeature gland
Oil gland

Question: How does the skin have hair? (false/6)

The hair is on top of the skin
The dermis grows underneath the hair
The dermis contains hair follicles that are structures where hairs originate
The dermis have nerve endings
The dermis contains hair follicles, specialised structures from which hairs originate, each single hair comes from a single follicle growing from the dermis to push it's way through the epidermis

Question: Why do I bleed when I cut myself? (false/7)

The cut really hurts
Because i cut the dermis layer and damaged blood vessels
Because the blood flows freely under sjub
The dermis contains blood vessels that you damage when you cut yourself
Because you hit a blood vessel

Question: Why does your finger bleed when it is cut? (true/8)

You have cut the dermis layer and damaged blood vessels
Because you cut off your finger
Because you damaged a blood vessell
Hair follicles
Because The dermis has blood vessels

Question: Why do I feel pressure when someone pokes me? (true/9)

Because you have nerve endings
Because The dermis has nerve endings and i can sense pain
The dermis has oil glandes
Because it presses down too hard
The dermis contains nerve endings which sense pressure

Question: What extends above the skin surface? (true/10)

Hair extends above the skin surface
Skin
Epidermis
Hair

Question: Why does the cut really hurt? (false/11)

Because of the nerve endings in this skin layer
Because you severely hurt yourself
Because of nerve endings under the dermis
Because the dermis contains oil glandes

Question: Where does the cut really hurt? (true/12)

Question: Why might the dermis hurt when skin is cut? (false/13)

The dermis is the inner layer of skin and has nerve endings
The dermis contains oil glandes
Because the dermis has nerve endings just below it
Because weak people feel pain

Question: The inner layer of skin which has blood vessels and nerve endings is called? (false/14)

The dermis
Dermis
Epidermis

Question: What is the composition of the skin? (true/15)

It has an inner layer called the dermis, this layer contains blood vessels and nerve endings, hair follicles and two types of glands
Epidermis and Dermis
Epidermis, dermis,
Hair follicles, oil glands
Oil glandes and hair follicles

Question: What is the last structure the hair passes through before extending above the skin surface? (false/16)

Paragraph: (Science-textbook/science-g4-34.txt)
Sent 1: Rivers flowing over gentle slopes move more slowly.
Sent 2: They move much more slowly than a mountain stream.
Sent 3: These slow moving streams create different types of features than mountain streams.
Sent 4: Slow moving water erodes the sides of their channels more than the bottom.
Sent 5: Also, large curves in the stream form.
Sent 6: These curves are called meanders.
Sent 7: Meanders are caused by erosion and deposition.
Sent 8: Remember, faster moving water causes erosion more quickly.
Sent 9: Slower moving water erodes material more slowly.
Sent 10: If water is moving slowly enough, the sediment being carried may settle out.
Sent 11: This settling out, or dropping off, of sediment is deposition.
Sent 12: The curves are called meanders because they slowly wander over the land.
Sent 13: As meanders erode from side to side, they create a floodplain.
Sent 14: This is a broad, flat area on both sides of a river.
Sent 15: Eventually, a meander may become cut off from the rest of the river.
Sent 16: This forms an oxbow lake.

Question: Do meanders cause oxbow lakes? (true/0)

When they are cut off from the rest of the river
Maybe
Yes

Question: Will water flowing over gentle slopes erode more of the sides of their channels or the bottom? (false/1)

No
Yes
The sides
The bottom

Question: Are large curves formed in streams when water is moving quickly? (false/2)

Question: True or false. Very fast moving water causes deposition. (true/3)

True
False

Question: What are the two processes that form large curves in streams? (true/4)

Meanders and floodplains
Erosion and deposition
Slow moving streams create different types of features than mountain streams, Slow moving water erodes the sides of their channels more than the bottom
River water flowing over gentle slopes, forming of meanders

Question: Does fast moving water cause erosion more quickly than slow moving water? (false/5)

Maybe
Yes

Question: True or false. Meanders are large curves in a slow moving stream. (false/6)

True
False

Question: When does deposition occur? (true/7)

When water flows over gentle slopes
When sediment is dropped off
Water is moving slowly enough, the sediment being carried may settle out. This is when deposition occurs
When water is moving slowly enough that the sediment settles out
When sediment is moved

Question: What type of stream can create deposition? (false/8)

Fast moving streams
Slow moving streams
Meander
Slow moving water

Question: Do mountain streams flow more slowly than rivers flowing over gentle slopes? (true/9)

Question: What is the flat area on both sides of a river? (false/10)

Question: What is the broad, flat area on both sides of a river called? (true/11)

A floodplain
Meander
Plateau

Paragraph: (Science-textbook/science-g4-41.txt)
Sent 1: The center of an atom is held together by powerful forces.
Sent 2: This gives them a huge amount of stored energy.
Sent 3: This type of energy is called nuclear energy.
Sent 4: This energy can be released and used to do work.
Sent 5: This happens in nuclear power plants where they split apart the nucleus of an atom.
Sent 6: This splitting apart is called nuclear fission.
Sent 7: Another type of nuclear energy happens in the Sun.
Sent 8: Here the atoms nuclei are not split apart.
Sent 9: Instead, the nuclei of the atoms are fused, or joined together.
Sent 10: This process is called nuclear fusion.
Sent 11: Some of the suns energy travels to Earth.
Sent 12: This energy from nuclear fusion warms the planet and provides the energy for photosynthesis.

Question: Nuclear fusion happens inside what space body? (false/0)

Question: What type of stored energy do atoms have? (false/1)

Question: Some of the suns energy travels to earth, what is the energy used for on earth? (true/2)

Question: What are the 2 processes called to form nuclear energy? (true/3)

Question: What type of nuclear energy process occurs in the sun? (true/4)

Question: What are the two nuclear processes called? (true/5)

Question: What is the process called when the nuclei of the atoms are fused, or joined together. (true/6)

Question: What is the process to produce nuclear energy in nuclear powerplants called? (true/7)

Question: How do nuclear fission and nuclear fusion differ? (true/8)

Question: What happens to atoms during nuclear fusion? (false/9)

Question: What is the stored energy at the center of the atom called? (true/10)

Question: What happens to the energy of an atom if the nucleus is split apart? (false/11)

"It's released."
The energy converts
Becomes kinetic energy
The atoms fuse back together
Causes photosynthesis
In a process called nuclear fission
This energy can be released and used to do work
In a process called rebound fusion
The energy is released

Question: What can be done with the stored energy that holds the center of atoms together? (false/12)

Question: Some of the Sun's energy travels to Earth and becomes energy for what process? (true/13)

Question: Do the atoms nuclei in the Sun split apart? (true/14)

Paragraph: (Science-textbook/science-g3-18.txt)
Sent 1: Do all plants live on the land?
Sent 2: Some plants do live in the water.
Sent 3: To do this, they have evolved special traits.
Sent 4: Plants that live in water are called aquatic plants.
Sent 5: Living in water has certain benefits.
Sent 6: There is certainly plenty of water!
Sent 7: The plant does not need special traits to absorb, transport, or conserve water.
Sent 8: They do not need a large root system.
Sent 9: They do not need a strong stem to hold up the plant.
Sent 10: The plant uses the water for support.
Sent 11: Dont think water plants have it easy, though.
Sent 12: They also face challenges.
Sent 13: Living in water isnt that easy.
Sent 14: They do need some special traits to survive.
Sent 15: It is tough for the plant to reproduce.
Sent 16: Pollination by wind or animals cant happen under water.
Sent 17: Sunlight cannot reach very far beneath the waters surface.
Sent 18: Some aquatic plants have floating flowers and leaves.

Question: What are two things that make it tough for an aquatic plant to reproduce? (true/0)

Pollination by wind or animals cannot happen under water, and sunlight cannot reach very far beneath the water's surface
Pollination is difficult to happen underwater, water doesn't have room to grow plants
They have fruits and flowers inside water,
Pollination by wind or animals cant happen under water.Sunlight cannot reach very far beneath the waters surface
Pollination by wind or animals cant happen under water

Question: Where do some plants live that don't live on land? (true/1)

In the water
Aquatic plants
In the air
Bushes

Question: Do aquatic plants require special traits to conserve water? (true/2)

No
Yes

Question: Where do plants live besides on land? (false/3)

Air
In water
Underground

Question: Are there benefits to living in water (false/4)

No
Yes
Yes, no pollution by wind or animals

Question: Plants in water do not have a strong stem support to hold them up so what holds them upright? (true/5)

The plant uses the water for support
The water
Floating flowers
Roots

Question: Do plants living in water have difficulty (false/6)

No
Yes

Question: Plants that live in water have special benefits and they don't need what things that plants on land do need? (true/7)

Question: Is a large root system necessary for plants that live in water? (false/8)

No
Yes

Question: How is an aquatic plant held up? (true/9)

Paragraph: (Science-textbook/science-g4-131.txt)
Sent 1: Sound waves are mechanical waves.
Sent 2: They can travel only through matter.
Sent 3: They cannot travel through empty space.
Sent 4: This was demonstrated in the 1600s by a scientist named Robert Boyle.
Sent 5: Boyle placed a ticking clock in a sealed glass jar.
Sent 6: The clock could be heard ticking through the air and glass of the jar.
Sent 7: Then Boyle pumped the air out of the jar.
Sent 8: The clock was still running, but the ticking could not be heard.
Sent 9: Thats because the sound couldnt travel without air particles to transfer the sound energy.
Sent 10: Is there any other place where sound cannot be heard?
Sent 11: Here is a hint: is there any other place that does not have air molecules?
Sent 12: Thats right, in space sound cannot be transferred.
Sent 13: So can astronauts hear each other?
Sent 14: Yes, they can, because they are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules.
Sent 15: If they left their space ship and did not use their electronics, they would not be able to hear each other.
Sent 16: Next time you watch a science fiction movie, think about this factoid.
Sent 17: When spaceships are destroyed by hostile alien beings, there would be no sound heard.
Sent 18: Sound waves can travel through many kinds of matter.

Question: Why can astronauts hear each other even if sound cannot be transferred in space? (false/additional)

They are in enclosed space stations or pressurized suits which means they are surrounded by air molecules
They have special electronics.
because they have special training
yes because there are air molecules in spce
because they yell

Question: Which scientist demonstrated that sound waves cannot travel through empty space by placing a ticking clock in a sealed glass jar? (false/challenge)

Boyle
Aristotle
Einstein

Question: In a science fiction movie when aliens destroy a spaceship why would there be no sound heard? (false/additional)

because there are no air particles for sound to travel to
in space sound cannot be transferred
no air molecules in space
because explosions are quiet in space
Because the air molecules are too dense in the space.
Because there is no air molecules on the earth.
because the aliens sucked up the sound

Question: What can sound waves move through? (false/additional)

Question: How did Robert Boyle prove the properties of sound waves? (false/additional)

Explosition in an jar, which couldn't be heard.
boyle placed a clock in a jar with no air, there was no sound
With a clock in a jar of water, and there was no sound.
He removed the air from the inside of a ticking clock and it stopped making noise.
boyle proved with equations
yelling in a vacuum
a gun in space

Question: Why can't you hear in the vacuum? (false/additional)

There are no air particles.
Mechanical waves can only travel through matter.
sound is not as loud there
because your ears don't work there

Question: How do astronauts hear? (false/challenge)

through air in their spacesuits
They hear through air molecules in their spaceships.
Via electronics.
via headphones
through the atmosphere of space

Question: Can sound waves travel through empty space? (false/challenge)

No, only through matter.
definitely not
of course

Question: Who demonstrated that sound could not travel through empty space, but only matter? (false/additional)

Robert Boyle
an experiment under water
Aristotle
Albert Einstein

Question: In Boyle's experiment, what did he do to make the clock stop being heard while in the jar? (false/additional)

Question: How do sound waves travel? (false/challenge)

Question: How did Robert Boyle prove how sound waves travel? (false/challenge)

He placed a ticking clock in a jar and then removed the air from the jar.
an explosion under water
he put a clock in a box underwater
yelling in space
He didn't.

Question: How do astronauts hear each other? (false/challenge)

in enclosed areas
though electronics
They hear through air molecules in their spaceships.
They are in enclosed space stations or pressurized suits.In both cases, they are surrounded by air molecules, but if they left their spaceship and did not use their electronics, they would not be able to hear each other.
via pressurized air suits
Boyle carries them with his empty jar.
special training
via gravity
better hearing

Paragraph: (Science-textbook/science-g3-40.txt)
Sent 1: Fossils give clues about major geological events.
Sent 2: Fossils can also give clues about past climates.
Sent 3: Fossils of ocean animals on the top of a mountain?
Sent 4: Ocean animals have been found on the Earths tallest mountain.
Sent 5: Its hard to believe, but it is true.
Sent 6: These fossils were found at the top of Mt. Everest.
Sent 7: Mt. Everest is the highest mountain on Earth.
Sent 8: These fossils showed that this entire area was once at the bottom of a sea.
Sent 9: It can only mean that Mt. Everest was uplifted.
Sent 10: In fact, the entire Himalaya mountain range was raised.
Sent 11: It was forced up from the collision of two continents.
Sent 12: Fossils of plants are found in Antarctica.
Sent 13: Now, Antarctica is almost completely covered with ice.
Sent 14: Plants do not grow in Antarctica.
Sent 15: According to fossils, they once did.
Sent 16: This means that Antarctica was once much warmer than it is now.
Sent 17: These fossils tell us about Antarcticas past climate.

Question: Did Antarctica's climate change throughout history? (true/0)

Question: What can fossils tell us about the past? (false/1)

It can tell us about past geological events and past climates
They give clues about major geological events
Antartica is cold
Continents collided
Changes in population
Mt Everest is the highest mountain
Mass extinctions
When Earth was created
Clues of major geological events and past climates

Question: What does the fact that fossils have been found on the top of Antarctica? (true/2)

Antartica is cold
Antarctica used to be an ocean
Fossils were carried there by the ocean
Things cant live in Antartica
Antartica used to be warm
Antarctica has always been cold
Animals live in Antartica
Antarctica used to be a warmer climate
Plants must have grown on Antarctica in the past, though they do not now

Question: What kind of fossils were found in the Himalayas? (false/3)

Question: What fossils are found?? where plants do not grow? (true/4)

Question: What are clues that the highest mountain on earth was once covered by sea? (false/5)

Fossils of ocean animals have been found on top of the mountain
Earth was completely covered by the sea at one time
The jagged ridges were created by ocean waves
There are fossils of ocean animals found at the top of mountains
The top of Mount Everest is wet
Plant fossils were found in Antartica
Ocean animal fossils have been found on Mt Everest
Mt Everest used to be less tall

Question: What Is the evidence that temperature used to be warmer in Antarctica? (true/6)

Plants that have adapted to colder climate grow in Antarctica
There was a collision of two continents
Fossils of plants and animals have been found, when there are no plants now
There are fossils of plants in Antartica
People who lived there a long time ago left notes saying it was warm
Penguins live there
Fossils tell us about Antartica's past climate
There are plants underneath the permafrost of Antarctica
Plant fossils indicate that Antarctica once had a warmer climate

Question: What does the fact that fossils have been found on the top of Mt. Everest? (true/7)

Mount Everest was under the seas
There are no fossils up there
Mt. Everest was lifted up from the collision of two continents
Mount Everest is the tallest mountain
Animals live on Mount Everest
The fossils have been carried up there
The fossils were blown up there
The entire area of Mt. Everest used to be on the ocean floor

Question: How were the Himalayas "uplifted"? (true/8)

Question: Where is an unexpected location fossils have been found? (true/9)

Question: How do we know that Mt. Everest used to be part of the sea? (false/10)

Ocean fossils were found at the top of Mt. Everest
Earth was completely covered by the sea at one time
The jagged ridges were created by ocean waves
Mount Everest got taller
Ocean animal fossils were found on top
Mount Everest is still under the sea
Fossils of ocean animals have been found
Mount Everest used to be warm

Question: Which mountain range has the Earth's highest mountain? (true/11)

Question: How do we know that Antarctica used to be warm? (true/12)

Plant fossils were found there
Antartica is cold
Plants that have adapted to colder climate grow in Antarctica
Plants can't grow there anymore, but fossils were found there
Plants can't live in Antartica
Fossils of plants have been found
There are plants underneath the permafrost of Antarctica
Antartica was never warm

Paragraph: (Science-textbook/science-g5-51.txt)
Sent 1: If you build a campfire, you start with a large stack of sticks and logs.
Sent 2: As the fire burns, the stack slowly shrinks.
Sent 3: By the end of the evening, all that is left is a small pile of ashes.
Sent 4: What happened to the matter that you started with?
Sent 5: Was it destroyed by the flames?
Sent 6: It may seem that way.
Sent 7: What do you think happened?
Sent 8: The truth is that the same amount of matter still exists.
Sent 9: The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases.
Sent 10: The gases floated off into the air, leaving behind just the ashes.
Sent 11: Although matter was changed, it was not created or destroyed.
Sent 12: Because the same amount of matter still exists, we can say that matter is conserved.
Sent 13: You may wonder how it can be conserved if something is now missing?
Sent 14: Assume you had measured the mass of the wood before you burned it.
Sent 15: Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes.
Sent 16: What would you find?
Sent 17: The ashes and gases combined have the same mass as the wood you started with.
Sent 18: This example illustrates the law of conservation of mass.

Question: What happened to the matter changed to when burning a fire? (true/0)

The wood changed to carbon dioxide, water vapor, and other gases that floated off into the air, leaving behind just the ashes
It changed to other gases
It changed to ashes
It changed to Carbon dioxide
It changed to water vapor
It was destroyed
More matter was created
All the matter changes to fire

Question: Is any matter destroyed when you burn wood in a campfire? (true/1)

Question: After you burn wood in your campfire, the wood matter ends up on the ground (mostly as ashes), but where does the rest of the matter go? (true/2)

It changes into air and heat
It is destroyed in the air
It travels through the air
It changed changes into carbon dioxide, water vapor and other gases
Into the air (as carbon dioxide, water vapor, and other gases)

Question: How is matter conserved after wood burns? (true/3)

Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes; the ashes and gases combined have the same mass as the wood you started with
The ashes and gases have the same composition
The ashes and gases combined have the same original mass
New matter is created to replace the destroyed matter
The matter takes on different forms

Question: What can cause wood to change to ashes, carbon dioxide, water vapor, and other gases? (true/4)

Question: Is any matter created when you burn wood in a campfire? (true/5)

Question: Ashes and gases in an example of what? (false/6)

Question: The fact that ashes and gases combined have the same mass as the wood you started with illustrates what law? (true/7)

Law of energy transfer
The law of conservation of mass
Law of equal and opposite reaction

Question: What happens to sticks and logs in a campfire? (true/8)

They change into pile of ashes
They are permanently eliminated from the earth
As the fire burns, the stack slowly shrinks and a while later, all that is left is a small pile of ashes
They get converted to fire and heat
They are converted to ashes and gases

Question: As a fire burns, what stack slowly shrinks? (true/9)

The stack of sticks and logs
The ashes
Stack of ashes
The stack of sticks

Question: Once a stack of sticks and logs is burnt what matter remains? (false/10)

The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases
Small pile of ashes
Only the ashes,All other matter was destroyed
Only the ashes, all other matter changed forms and moved away from the fire
Big pile of ashes
Ashes

Question: What happened to the wood? (true/11)

It was converted to ashes
The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases, which floated off into the air, leaving behind just the ashes
They get converted to ashes entirely
They get converted to water vapor, carbon dioxide and other gases
It was completely destroyed

Question: What is left when the stack shrinks? (true/12)

Paragraph: (Science-textbook/science-g3-43.txt)
Sent 1: You might want to know how cold it is.
Sent 2: You may need to know how fast the wind is blowing.
Sent 3: Maybe it rained last night?
Sent 4: Do you know how much?
Sent 5: Does it feel humid to you?
Sent 6: You have heard all these questions before.
Sent 7: To answer these questions, we need data.
Sent 8: That data comes from special tools.
Sent 9: These tools collect data about the weather.
Sent 10: You can see some of the common tools listed below: A thermometer measures temperature.
Sent 11: An anemometer measures wind speed.
Sent 12: A rain gauge measures the amount of rain.
Sent 13: A hygrometer measures humidity.
Sent 14: A wind vane shows wind direction.
Sent 15: A snow gauge measures the amount of snow.

Question: How can you find out how much snow fell in a particular time frame? (false/0)

Question: In order to determine the level of humidity in the air, what tool would you need to use? (true/1)

Question: What are two types of tools that collect wind data? (true/2)

Question: What tools are used to measure the amount of precipitation? (true/3)

Question: What question does a thermometer answer? (false/4)

Question: How could you measure temperature and humidity? (true/5)

Question: How is weather measured? (true/6)

Question: What do "special tools" do with data? (true/7)

Question: What data are collected by special tools? (true/8)

Question: What question does a rain gauge answer? (false/9)

Question: What tools would you use to measure the amount of rain and wind speed? (true/10)

Question: What are some common tools? (true/11)

Question: How do we get weather data? (true/12)

Question: What can data tell us? (false/13)

Question: How can you measure the direction and velocity of the wind? (false/14)

Question: What tool would you use to determine how much rain fell last night? (false/15)

Paragraph: (Science-textbook/science-g5-8.txt)
Sent 1: Density is also an important physical property of matter.
Sent 2: The concept of density combines what we know about an objects mass and volume.
Sent 3: Density reflects how closely packed the particles of matter are.
Sent 4: When particles are packed together more tightly, matter is more dense.
Sent 5: Differences in density of matter explain many phenomena.
Sent 6: It explains why helium balloons rise.
Sent 7: It explains why currents such as the Gulf Stream flow through the oceans.
Sent 8: It explains why some things float in or sink.
Sent 9: You can see this in action by pouring vegetable oil into water.
Sent 10: You can see a colorful demonstration in this video.

Question: Do differences in density influence the phenomenon that occurs when pouring vegetable oil into water? (true/0)

No
Yes

Question: What physical property of matter combines what we know about an object's mass and volume? (true/1)

Question: What does density tell? (true/2)

How closely packed the particles of matter are
How big things are
The distance between points
Density combines what we know about an object's mass and volume and reflects how closely packed the particles of matter are
How fast something moves
The area of subjects
What we know about an objects mass and volume

Question: What are three examples of density given in the article? (true/3)

Question: What can density explain? (true/4)

Question: Can the phenomenon of a rising helium balloon be explained by how closely particles are packed within the object? (false/5)

No
Yes

Question: What are some things density explains? (true/6)

Question: Based on the explanation in the article, why do you expect to happen with the water and oil? (true/7)

They will become a solution
One of them will sink and the other rise to the surface based on which one is denser
That they won't combine easily
They will mix easily
They will form a bond
They will make a mixture
The more dense substance will rise

Question: Why is density important? (true/8)

It is a force that inter plays with gravity
It holds shape
When particles are packed together more tightly, matter is more dense and differences in density of matter explain many phenomena
It explains many phenomena
The concept of density combines what we know about an objects mass and volume
It holds things together
It teaches things about nature
It's a physical property of matter

Question: What is density? (true/9)

Electricity
How closely packed the particles of matter are
The weight of an object
The repelling of particles
The conductivity of an object
It is an important physical property of matter that combines what we know about an object's mass and volume. It is how closely packed the particles of matter are

Question: How can I observe the role density plays? (false/10)

By pouring water into ilk
By pouring vegetable oil into water
Watching rocks
Watching the moon
Differences in density of matter explain many phenomena
Watching the stars
By watching the animation or by adding oil to water yourself

Question: How can I understand density? (false/11)

By combining what you know about mass and volume. Simply the more mass in a smaller volume, the more dense
By an objects mass and volume
By listening to friends
By watching things float
By hearing a recording
By watching the environment
You can see a colorful demonstration in this video

Paragraph: (Science-textbook/science-g4-33.txt)
Sent 1: Water flowing over Earths surface or underground causes erosion and deposition.
Sent 2: Water flowing over a steeper slope moves faster and causes more erosion.
Sent 3: How water transports particles depends on their size.
Sent 4: When water slows down, it starts depositing sediment.
Sent 5: This process starts with the largest particles first.
Sent 6: Runoff erodes the land after a heavy rain.
Sent 7: It picks up sediment.
Sent 8: Runoff carries most of the sediment to bodies of water.
Sent 9: Mountain streams erode narrow, V-shaped valleys and waterfalls.
Sent 10: Erosion and deposition by slow-flowing rivers create broad floodplains and meanders.
Sent 11: Deposition by streams and rivers may form alluvial fans and deltas.
Sent 12: Floodwaters may deposit natural levees.
Sent 13: Erosion and deposition by groundwater can form caves and sinkholes.
Sent 14: Stalactites and stalagmites are mineral deposits.
Sent 15: They build up in caves as water continues to drip.

Question: What liquid causes erosion? (true/0)

Question: What is picked up by the water? (false/1)

Question: Which particles are deposited first when water flowing over Earth's surface begins to slow down? (true/2)

Question: Where do stalactites and stalagmites occur? (true/3)

Question: What body of water carries the particles? (true/4)

Question: What picks up sediment after a heavy rain? (true/5)

Question: What kind of deposits build up in caves as water continues to drip? (false/6)

Question: Do mountain streams create broad floodplains and meanders? (true/7)

No
Claerly
Sometimes

Paragraph: (Science-textbook/science-g5-62.txt)
Sent 1: Reducing resource use means just what it says using fewer resources.
Sent 2: There are lots of ways to reduce our use of resources.
Sent 3: Buy durable goods.
Sent 4: Choose items that are well made so they will last longer.
Sent 5: Youll buy fewer items in the long run, so youll save money as well as resources.
Sent 6: Thats a win-win!
Sent 7: Repair rather than replace.
Sent 8: Fix your bike rather than buying a new one.
Sent 9: Sew on a button instead of buying a new shirt.
Sent 10: Youll use fewer resources and save money.
Sent 11: Buy only what you need.
Sent 12: Dont buy a gallon of milk if you can only drink half of it before it spoils.
Sent 13: Instead, buy a half gallon and drink all of it.
Sent 14: You wont be wasting resources (or money!) Buy local.
Sent 15: For example, buy local produce at a farmers market, like the one in Figure 2.20.
Sent 16: A lot of resources are saved by not shipping goods long distances.
Sent 17: Products bought at farmers markets use less packaging, too!
Sent 18: About a third of what we throw out is packaging.

Question: How does buying durable items save resources? (true/0)

Youll buy fewer items in the long run, so youll save money as well as resources
You will use less kinetic energy
You will use less nuclear energy
Less water power is required
Because they last longer, fewer items will be needed and fewer resources used
Goods will not need to be shipped long distances
The products will last longer and you'll buy fewer items in the long run
You will pay less

Question: How is it a win-win to buy durable goods? (false/1)

Youll buy fewer items in the long run, so youll save money as well as resources
You will have more things at a lower cost
You save money as well as resources
You'll save food as well as money
You will save minerals and cash
By buying fewer items you save resources and spend less money
Shipping costs are saved
You will save money and gas

Question: How does buying durable goods help reduce resource use? (false/2)

Youll buy fewer items in the long run, so youll save money as well as resources
Uses less shipping
You will spend less money
Durable goods use fewer resources to make them
Uses less packaging
Choose items that are well made so they will last longer. You'll buy fewer items in the long run, so you'll save money as well as resources
Utilizes less fossil fuel
You will buy fewer items

Question: How does one buy durable goods to reduce resource use? (true/3)

Buy something in solid packaging
Choose items that are well made so they will last longer; you'll buy fewer items in the long run, so you'll save money as well as resources
Choose items that are well made so they will last longer
Packaging is reduced
Shipping costs are eliminated
They last longer and so you won't need to repurchase the same item as soon
Buy from reputable sellers
Buy things without packing

Question: What are two examples of repair rather than replacing? (true/4)

Question: How can you reduce the use of resources by buying local? (false/5)

Question: How does buying local reduce resource use? (true/6)

keeps from utilizing factories
A lot of resources are saved by not shipping goods long distances
The food is fresher
Uses less nuclear energy
The prices are lower
You don't have to travel as far
Less packaging is used
Cuts back on energy use
A lot of resources are saved by not shipping goods long distances. Products bought at farmers markets use less packaging, too! About a third of what we throw out is packaging

Question: How does buying only what you need to avoid resource waste? (true/7)

Dont buy a gallon of milk if you can only drink half of it before it spoils, buy a half gallon instead
Buy more than you need
You will save money
Buy only what you can use
Farmers will reduce packaging
There will be less thrown away because an item has spoiled
Food won't spoil
Share what you have
Try to use less of the items you buy

Paragraph: (Science-textbook/science-g4-95.txt)
Sent 1: Rock layers extend laterally, or out to the sides.
Sent 2: They may cover very large areas.
Sent 3: This is especially true if they formed at the bottom of ancient seas.
Sent 4: Seas are very large areas of water.
Sent 5: Over time, sediment builds up on the seabed.
Sent 6: They will be covered with the same types of material.
Sent 7: As rocks form out of this sediment it will all be the same type.
Sent 8: The rocks may be forced up above the water as Earths plates move.
Sent 9: Rivers may eventually run across this area.
Sent 10: The river will cut into the rock and erode it away.
Sent 11: The layers of exposed rock on either side of the river will still match up.
Sent 12: Look at the Grand Canyon in Figure 2.27.
Sent 13: Its a good example of lateral continuity.
Sent 14: You can clearly see the same rock layers on opposite sides of the canyon.
Sent 15: The matching rock layers were deposited at the same time.
Sent 16: They are the same age.

Question: What is the Grand Canyon a good example of? (false/challenge)

lateral continuity
Ancient Seas
Rivers
seas

Question: When rocks are forced up above the water as Earth plates move what may eventually happen? (false/challenge)

Rivers may eventually run across this area
rivers will erode the rock away
The river will cut into the rock
noise will come
people will settle on the rock

Question: When are rock layers more likely to cover large areas? (false/additional)

when they are formed at the bottom of ancient seas
If they formed at the bottom of seas
when there is nothing to impede their growth
As rocks form
When rivers run across the area
when rocks fall

Paragraph: (Science-textbook/science-g3-23.txt)
Sent 1: An insect can have one of three types of change in its life.
Sent 2: A metamorphosis describes how insects change.
Sent 3: Some insects do not go through a change.
Sent 4: Instead, the young look like small versions of adults.
Sent 5: The only change between young and mature is size.
Sent 6: Other types of insects go through a change in physical appearance.
Sent 7: There are two types of this type of change.
Sent 8: Some insects change only slightly during their change.
Sent 9: This type is called incomplete metamorphosis.
Sent 10: Other types of insects go through a major change.
Sent 11: They don't look at all like the adult when they are born.
Sent 12: This type of change is called complete metamorphosis.
Sent 13: Occurs in the most primitive insects.
Sent 14: Newborn insect looks like a tiny version of the adult.
Sent 15: Incomplete Three stages: egg, nymph, and adult.
Sent 16: Young, called nymphs, usually similar to adult.
Sent 17: Growth occurs during the nymph stage.

Question: What happens when an insect goes through incomplete metomorphosis? (false/0)

Looks very different from infant to adult
Change only slightly
Slightly changes
Occurs in the most primitive insects
Follows four stages of development
Three stages: egg, nymph, and adult
Looks like a tiny version of the adult
They look exactly the same as an adult as when it was born

Question: What is it called when an insect goes through a major change and does not look anything like it did when it was born? (true/1)

Question: What is it called when some insects go through one of three types of change? (true/2)

Question: What do the young of insects who do not go through a change look like? (true/3)

Paragraph: (Science-textbook/science-g4-68.txt)
Sent 1: Imagine a glass of your favorite drink that never became empty.
Sent 2: Now think about what really happens.
Sent 3: You take a drink and there is less in the glass.
Sent 4: You keep drinking and soon it is all gone.
Sent 5: Good thing you have more to refill your glass.
Sent 6: What if there would never be any more of your favorite drink.
Sent 7: What would you do?
Sent 8: Now you know the difference between renewable and non-renewable.
Sent 9: Its too bad that many things here on Earth will run out.
Sent 10: This includes some of our natural resources we depend on.
Sent 11: Things like oil will not last forever.
Sent 12: There is a limited supply.
Sent 13: Someday, we will run out, so then what?
Sent 14: At current rates of use, coal will last about 300 years.
Sent 15: Petroleum will be used up in just a few decades.

Question: What are other resources that will be gone? (false/0)

Question: What is the difference between renewable and non-renewable? (false/1)

Renewable means finite, non-renewable last forever
One can be made more of the other can't
One is causes air pollution while the other does not
Renewable resources can be "refilled." Once you run out of a non-renewable resource, there is no more of it
Renewable means you can keep replenshing, and non-renewable means you can not

Question: How long before we run out of some key natural resources? (false/2)

Question: What are some non renewable resources that will run out eventually? (false/3)

Question: What will happen to oil and why? (true/4)

It will run out because there is a limited amount
It will run out because its nonrenewable
It will run out because it is renewable
Oil will not last forever since there is a limited supply
It will last forever

Question: What scenario does the author use to illustrate the difference between renewable and non renewable resources? (true/5)

He/she uses a glass and ones favorite drink, one case of were you always have that drink to fill the glass and no scenario there is no more to fill up the glass
His favorite drink
Your favorite drink
Drinking a glass of your favorite drink
Building a sand castle

Question: Is oil a renewable or non renewable resource and when is it expected to be used up? (true/6)

Oil is a non renewable resource and will be used up in a few decades
Used up in 30 years
Few years
Nonrewable
Oil is a non-renewable resource. It will be used up in a few decades
Few decades
Renewable

Question: How would a glass of your favorite drink never become empty? (false/7)

You take a drink and there is less in the glass and you keep drinking and soon it is all gone, but you have more to refill your glass
Keep refilling it
If it was nonrewable
If it was renewable
By imagining it

Question: Does the Earth have other none renewable resources we depend on other than oil? (true/8)

Question: What are some non-renewable resources? (true/9)

Question: What are some examples of resources that will run out? (true/10)

Paragraph: (Science-textbook/science-g4-17.txt)
Sent 1: Breathing is the process of moving air into and out of the lungs.
Sent 2: The process depends on a muscle called the diaphragm.
Sent 3: This is a large, sheet-like muscle below the lungs.
Sent 4: Inhaling, or breathing in, occurs when the diaphragm muscle tightens.
Sent 5: This increases the size of the chest.
Sent 6: This too decreases air pressure inside the lungs.
Sent 7: This action allows air and gases to enter the lungs.
Sent 8: Exhaling, or breathing out, occurs when the diaphragm muscle relaxes.
Sent 9: This decreases the size of the chest.
Sent 10: This increases air pressure inside the lungs.
Sent 11: This action allows for air to leave the lungs.
Sent 12: When you inhale, air enters the respiratory system through your nose and ends up in your lungs, where gas exchange with the blood takes place.
Sent 13: What happens to the air along the way?
Sent 14: In the nose, mucus and hairs trap any dust or other particles in the air.
Sent 15: The air is also warmed and moistened.
Sent 16: Next, air passes through a passageway that is connected to the windpipe.
Sent 17: The air then finds its way to the lungs.
Sent 18: In the chest, the windpipe splits so that air enters both the right and left lung.

Question: What happens to the size of your chest when you relax your diaphragm muscle? (true/0)

Increases
Does not change
Decreased

Question: What happens to the air pressure inside your lungs when you inhale? (true/1)

Increases
It decreases

Question: Does the nose trap dust and moisten the air? (true/2)

No
Yes

Question: Breathing process depends on which muscle (false/3)

Chest
Diaphragm
Biceps

Question: What leads to decrease in size of chest while exhaling (true/4)

Exhaling, occurs when the diaphragm muscle relaxes which leads to decrease in size of chest
Exhaling
Decrease in air pressure
Increase in air pressure
Inhaling

Question: What is happening when your chest decreases in size while breathing? (true/5)

Exhaling
Inhaling
Sweating
Exhaling, or breathing out

Question: The nose, diaphragm, lungs, and windpipe are all a part of what system in our body? (true/6)

Digestive system
Respiratory System

Question: What happens in the nose as air passes through to the lungs? (true/7)

In the nose, mucus and hairs trap any dust or other particles in the air. The air is also warmed and moistened
The exchange of gases takes place
Allows any dust
Mucus and hairs trap any dust or other particles in the air
Dust trap any mucus and hairs

Question: What happens to the size of the chest when the diaphragm muscle tightens? (true/8)

Increases
Down
Chest increases in size
Decreases

Question: What happens to the air pressure inside the lungs when the diaphragm muscle tightens? (true/9)

Increases
decreases
Going down
Does not change

Question: The process of breathing depends on what muscle? (true/10)

Lungs
Diaphragm
Biceps

Question: How does air leave our lungs? (true/11)

Question: When you inhale, does air first go through your nose, then through your windpipe, and finally into your lungs? (false/12)

No
Yes

Question: Why inhaling increases size of chest (true/13)

Due to decreases in air pressure inside the lungs
Due to increase in air pressure inside the lungs
Chest muscle tightens
Inhaling occurs when the diaphragm muscle tightens which increases size of chest
Diaphragm muscle tightens

Question: What warms the air? (true/14)

Lungs
Mucus and hairs
The nose
Mouth

Question: What is located below the lungs? (false/15)

Windpipe
Airpipe
Diaphragm
Biceps

Question: What is the muscle called that tightens and relaxes, allowing you to breathe? (true/16)

Chest
Diaphragm
Biceps

Question: What happens to the size of the chest when the diaphragm muscle relaxes? (true/17)

Increases
It decreases

Question: When you breathe in, what happens to the size of your chest? (true/18)

Decreases in size
It increases
Increases in size
Decreased

Question: When you exhale, why does air leave your lungs? (true/19)

To enter respiratory system
Due to increase in air pressure
To enter urinatory system
Exhaling decreases the size of your chest, which increases the air pressure inside your lungs, allowing for air to leave the lungs
Due to decrease in air pressure

Question: What is happening when your chest increases in size while breathing? (true/20)

Exhaling
Blows air and gases to enter all the other parts of the body
Inhaling, or breathing in
Inhaling
Blows air and gases to enter the lungs

Paragraph: (Science-textbook/science-g3-21.txt)
Sent 1: When you get sick, your body springs to action.
Sent 2: Your body starts to fight the illness.
Sent 3: Thats why you want to eat right and get plenty of sleep.
Sent 4: You need a strong immune system to fight off illness.
Sent 5: Plants dont have an immune system.
Sent 6: That does not mean they do not get sick.
Sent 7: Plants are affected by disease just like us.
Sent 8: Typically, their first line of defense is the death of part of the plant.
Sent 9: This prevents the infection from spreading.
Sent 10: Many plants also produce special chemicals to fight disease.
Sent 11: For example, willow trees produce a chemical to kill the bacteria.
Sent 12: The same compound is used in many acne products.
Sent 13: You can see a picture of a willow tree in Figure Plants may be smarter than we think.
Sent 14: No, they cannot talk to each other.
Sent 15: They may be able to send messages, though.

Question: What takes place first, when a disease starts eating away at a plant? (false/0)

Question: What typically happens in a plant first to prevent an infection from spreading? (true/1)

Question: Without an immune system do plants get infections? (false/2)

No
Yes

Question: The same chemical that willow trees produce to fight infection can be found where? (true/3)

Question: Can plants fight infection without releasing special chemicals? (true/4)

No
Yes
Sometimes in mild cases
Yes- by making a part of the plant die

Question: Why does part of a plant die when a plant is infected by disease? (true/5)

To fight the infection
Because the sun is too strong
Because water can't reach it
To prevent the infection from spreading
To prevent the spread of disease
To promote infection
Because it kills it

Question: How might death of part of a plant help the plant? (true/6)

To help the spread of infection
To fight the infection
It will keep disease from spreading
It can prevent an infection from spreading
It will keep water from flowing
It will improve photosynthesis
It will let a new part grow

Question: Willow trees create a special chemical that serves as what? (true/7)

Question: What do humans have that plants don't have? (true/8)

Question: What are two ways plants can fight off disease? (false/9)

It hibernates and produces chemicals that fight disease
Death of part of the plant and hibernation
Eat right and get plenty of sleep
Through the death of part of the plant, and by producing special chemicals to fight off disease
Drops leaves and goes dormant

Question: Which tree produces a compound in many acne products? (false/10)

Question: Why might people who use acne products appreciate Willow trees? (true/11)

Willow trees inspired acne products
The chemical that willow trees produce to kill bacteria is also a compound used in many acne products
Willow trees have fungus that fight acne
Better fraFrance
Willow trees produce the chemical this is in acne products
Willow trees produce a chemical to kill the bacteria
Willow bark is used in acne products

Question: What kind of organisms can get sick even though they don't have immune systems? (false/12)

Question: Plants have an immune system just like humans: True or False? (false/13)

True
False

Question: What can help you to have a strong immune system? (true/14)

Paragraph: (Science-textbook/science-g3-0.txt)
Sent 1: Static electricity is like a teeter-totter.
Sent 2: What happens if a teeter-totter is balanced?
Sent 3: Correct!
Sent 4: It does not move.
Sent 5: What about when its not balanced?
Sent 6: Yes, it will now begin to move.
Sent 7: Charges move when they are not balanced.
Sent 8: Charges can build up by friction.
Sent 9: Maybe you rub your feet on a wool mat or carpet.
Sent 10: Rubber soled shoes readily gain charges.
Sent 11: The wool carpet easily gives up charges.
Sent 12: The two items become unbalanced.
Sent 13: One item has a positive charge.
Sent 14: The other has a negative charge.
Sent 15: The difference in charge is called static electricity.
Sent 16: Just like the teeter-totter, something is going to move.
Sent 17: Positive charges build up on the mat.
Sent 18: Negative charges build up on you.

Question: When static electricity is balanced like a teeter-totter, what happens? (true/0)

Question: Does a teeter-totter move if it is balanced? (true/1)

No it does not
Yes it will move
I don't know

Question: What happens if static electricity is not balanced? (true/2)

Question: If two items build unbalanced charges, the difference is called what? (true/3)

Question: What is an example of how charges build up by friction? (false/4)

Stomp your feet on wool mat or carpet
Jump up and down on wool mat or carpet
Maybe you rub your feet on a wool mat or carpet
Rub rubber shoes on wool mat or carpet
Two items become unbalanced
Stomp your shoes on wool mat or carpet
You rub water on your face

Question: What kind of charge is required for static electricity? (false/5)

Question: What two types of charges build up in unbalanced items? (true/6)

Question: Charges can move when they are unbalanced by what? (true/7)

Question: What happens if a teeter-totter is balanced? (true/8)

Nothing it doesnt move
It doesn't move
It will move
It means the charges are imbalanced

Question: What kind of charges are needed to produce static electricity? (false/9)

Question: How are electrical charges similar to a teeter-totter? (true/10)

An imbalance means something is going to move
They are outside
You'll get shocked if you touch a teeter-totter
Charges does not move when it is balanced
If they are balanced they do not move
The two items become unbalanced
Teeter-totters cause large amounts of electrical charges
Charges move when they are not balanced, just like a teeter-totter moves when it is not balanced

Question: What happens to static electricity if it is balanced? (true/11)

Question: When static electricity is not balanced, what happens to the charges? (false/12)

The objects have a positive or negative charge
There is a neutral charge
Charge doesnt not move and become powerless
Just like the teeter-totter, something is going to move
Nothing
The charge is balanced like a teeter-totter
There is no charge
Charges move and increase power
The charges move

Paragraph: (Science-textbook/science-g5-22.txt)
Sent 1: The properties of matter depend on the types of atoms that matter is made of.
Sent 2: Matter can exist in two forms.
Sent 3: It can be a pure substance.
Sent 4: This means it is not mixed with anything.
Sent 5: It can also be a combination of different substances.
Sent 6: This means it can be a mix of different types of atoms.
Sent 7: You may recall that atoms differ based on the numbers of protons they contain.
Sent 8: Some atoms contain only one proton such as Hydrogen.
Sent 9: Other atoms contain many protons.
Sent 10: There are many types of atoms.
Sent 11: For example, Helium has two protons.
Sent 12: An Oxygen atom has eight.
Sent 13: Water is composed of a two types of atoms.
Sent 14: Water is made of two Hydrogen atoms and one Oxygen atoms.
Sent 15: There are only so many types of atoms.
Sent 16: These atoms can be mixed into an almost limitless amount of substances.
Sent 17: So what do we call a substance that has only a single type of atom?

Question: What are the two forms of matter? (false/0)

One protons and may protons
Oxygen
It can be a pure substance or It can also be a combination of different substances
A pure substance, or a mixture of substances
Atoms

Question: If matter is composed of many different types of substances, it can be made of many different types of what? (false/1)

Combination of different substances
Water
Atoms
Can be a mix of different types of atoms

Question: What atoms is water composed of? (true/2)

Question: How many more protons does Helium have than Hydrogen? (false/3)

Question: How many protons do atoms contain? (false/4)

They always contain 1
Some atoms contain only one proton such as Hydrogen. Other atoms contain many protons
They can contain one or many
Some atoms contain only one proton and other atoms contain many protons
Two protons

Question: What does pure substance mean? (false/5)

Mixed with other substances
Having at least 2 of the same atoms
Single type of atom
This means it can be a mix of different types of atoms
This means it is not mixed with anything

Question: What are two types of atoms according to the paragraph? (false/6)

Question: What is contained in water? (false/7)

Question: What two forms of matter are there? (true/8)

Helium
Hydrogen
It can be a mix of different types of atoms
It can be a pure substance or It can also be a combination of different substances
Mixture of substances
Pure Substance

Question: If matter is a pure substance is it mixed with something? (false/9)

No
Pure substance
Yes
No, This means it is not mixed with anything

Question: What are the two forms matter can exist in? (true/10)

Pure
Chemicals
Combination of different substances
It can be a pure substance or It can also be a combination of different substances
Pure Substance & A Combination of Different Substances
Atoms
Mixture

Question: What type of matter means it can be made up of a mix of different type of atoms? (true/11)

Pure
A pure substance
Combination of different substances
Mixture

Question: In what two forms can matter exist? (true/12)

Question: Do some atoms have many protons, while others have very few? (false/13)

No
The atoms contains one proton
Yes
Some atoms contain only one proton. Other atoms contain many protons

Question: Water is composed of which two atoms? (true/14)

Question: What form of matter is not mixed with anything? (false/15)

Pure
Combination of different substances
A pure substance
Mixture

Paragraph: (Science-textbook/science-g4-115.txt)
Sent 1: From a human point of view, a habitat is where you live.
Sent 2: It might be your city, town, or neighborhood.
Sent 3: Your habitat can be altered.
Sent 4: Most people move a few times in their lives.
Sent 5: But a plant cannot move.
Sent 6: An animal may not be suited to live in another area.
Sent 7: A habitat is the natural home or environment of an organism.
Sent 8: Humans often destroy the habitats of other organisms.
Sent 9: The loss of habitat can cause the extinction of species.
Sent 10: Extinction is when a species disappears forever.
Sent 11: Once a species is extinct, it can never be brought back.
Sent 12: Humans cause habitat destruction in many ways.
Sent 13: There are two common ways this happens.
Sent 14: Land may be cleared.
Sent 15: Another way is when an animal or plant is brought to an area where it does not belong.

Question: What do humans consider are the characteristics of a habitat? (false/challenge)

can be altered
A habitat is where you live. It might be your city, town, or neighborhood. Your habitat can be altered.
habitat is where you live.
cannot move
human point of view

Question: How do people's habitats differ from a plant's? (false/challenge)

Humans can move and change habitats, but plants can't move so they cannot change their habitat themselves.
plant's habitat can move.

Question: How does an animal's relationship to their habitat differ from humans? (false/challenge)

Humans may not be suited for another habitat
Animals may not be able to move habitats because they may not be suitable for other locations. Humans are able to move and adapt.

Question: How do humans affect the habitats of plants and animals? (false/additional)

Animals often destroy their habitats
Humans often destroy the habitats of other organisms, which can often lead to their extinction.
Animals affect humans' habitat.

Question: How do humans cause habitat destruction? (false/additional)

Land may be cleared, or when an animal or plant is brought to an area where it does not belong.
clearing land
planting trees

Question: In this passage, your city, town, or neighborhood are used as examples of what? (false/challenge)

a habitiat
an ecosystem
habitats that can be moved

Question: Destroying habits, can lead to what happening? (false/challenge)

extinction in species
Extinction
moving to new habitats
reproduction in species

Question: What are the two common ways that habitat destruction can occur? (false/additional)

being brought to an area where they do not belong
clearing land
Land being cleared & when an animal or plant is brought into an area it does not belong.
growing trees
leaving animals at their natural habitat

Question: What is a habitat? (false/challenge)

A habitat is where you live, which might be your city, town, or neighborhood.
a place where you live
a place to eat
a place to reproduce

Question: Why humans and plants are different in the way they interact with their habitats? (false/challenge)

Humans often alter their environment.
Plans often change their habitat.
Most people move a few times in their lives but a plant cannot move.
They interact with their environment differently.

Question: What are two ways humans destroy habitats? (false/additional)

Bringing animals and plans to an area where they do not belong
Clearing a land.
Clearning their body
Bringing kids
leaving animals at their natural habitat

Question: Can a habitat be altered and if so what could be an outcome? (false/challenge)

Question: Once a species is extinct, can it be brought back? (false/challenge)

Question: Your habitat can be altered according to whose point of view? (false/challenge)

a humans
plants

Question: What causes a species to disappear forever and could never be brought back? (false/additional)

loss of habitat
Extinction
habitat growth

Question: How many common ways do humans cause habitat destruction? (false/additional)

2
two
ten

Question: What are the two common ways human's cause habitat destruction? (false/challenge)

being brought to an area where they do not belong
clearing land
growing trees
leaving animals on their own.

Paragraph: (Science-textbook/science-g4-62.txt)
Sent 1: It is not enough to describe some objects by their location.
Sent 2: We may also need to know its direction.
Sent 3: For example, a wind blows a storm over your school.
Sent 4: Where is that storm coming from?
Sent 5: Where is it going?
Sent 6: How can we describe a direction?
Sent 7: The most common way is by using a compass.
Sent 8: A compass is a device with a floating needle (Figure 2.1).
Sent 9: The needle is a small magnet.
Sent 10: The needle aligns itself with the Earth's magnetic field.
Sent 11: The compass needle always points to magnetic north.
Sent 12: If you have a compass and you find north.
Sent 13: You can then know any other direction.
Sent 14: See the directions, such as east, south, west, etc., on a compass rose.
Sent 15: The Earth has two poles.
Sent 16: It has a magnetic north pole.
Sent 17: It also has a geographic north pole.
Sent 18: These two poles are close to each other but not the exact same place.

Question: What are the earth's two poles? (false/additional)

Question: What is the floating needle in a compass made of and which way does it point? (false/additional)

The needle is a small magnet. The needle aligns itself with the Earth's magnetic field.
it's a magnet it always points south
It's a magnet and it always points to the south pole
a metal rod that moves with you
It's a copper rod and points to the geographic north pole
it is a small radio and it points to eaths south.

Question: What two poles are close to each other? (false/challenge)

Magnetic north pole and geographic north pole.
Geographic North pole and magnetic south pole
South pole and North pole
east pole and west pole
north and east

Question: What device has a needle that is a small magnet? (false/challenge)

A compass.
radio
map

Question: What does a compass align itself with? (false/challenge)

The compass needle always points to magnetic north.
Earth's magnetic field.
The compass needle always points to magnetic south.

Question: What might be some characteristics of a storm that we would want to be known? (false/additional)

The storm's direction; where is that storm coming from and where is it going.
the direction of the storm.
where its coming from and going
the face of storm.
The gravity inside the storm

Question: How does a compass work? (false/additional)

A compass has a floating needle, which is a small magnet that aligns itself with the Earth's magnetic field and always points to magnetic north.
a magnet shows north by being aligned with earths magnetic field
The compass needle always points to magnetic north.
The compass needle always points to geographic north.
magic
The compass needle always points to magnetic east

Question: What poles does the Earth have? (false/additional)

The Earth has a magnetic east pole and a geographic west pole.
South Pole and North Pole
east pole and west pole.

Question: What is the most common way to determine direction? (false/additional)

Question: What is a compass? (false/additional)

A compass is a device with a floating needle that is magnetic.
a magnet that shows north
a device with a floating needle
a rod that shows every direction
it is a radio
it is a phone app
it is a website

Question: How does the compass work? (false/challenge)

The magnetic north pole will pull the magnet needle causing it to point north.
by always pointing to magnetic north.
needle points to north
The needle aligns with the position of north
by always pointing to magnetic east.
a rod shows each direction

Question: How can we tell where east, west, and south are with a compass? (false/additional)

are relative to the position of north
based on where north is, which is what the magnet points to
Once the magnet points north we then can read the face of the compass where east, west and south are marked.
the rod shows each direction
west is left
compass always points to east and we can point to other directions.
east is left

Question: What are the two north poles and are they in the same spot? (false/additional)

There is a magnetic and geographic north pole that are very close to each other but not in the same exact spot.
magnetic and geographic north and not the same spot
east pole and west pole and they are on same spot.
north and south and yes the same spot

Question: Why might it be helpful to know direction of a moving object, such as a storm, in addition to its location? (false/additional)

Knowing an object's direction can tell you where it is coming from and where it is going.
so that we can chase it with our car.
research purposes
to assess the depth of the damage.
To find the north pole

Question: What is an instrument used for describing direction? (false/challenge)

A compass.
radio
A phone
A smartphone

Question: What does the magnet in a compass point toward? (false/additional)

Magnetic north.
Geographic north
magnetic south.
both of the north poles

Question: Being able to find north allows you to do what? (false/additional)

to find the other directions.
Find McDonalds
to find the restaurant.

Paragraph: (Science-textbook/science-g3-29.txt)
Sent 1: "What goes up must come down."
Sent 2: You have probably heard that statement before.
Sent 3: At one time this statement was true, but no longer.
Sent 4: Since the 1960s, we have sent many spacecraft into space.
Sent 5: Some are still traveling away from Earth.
Sent 6: So it is possible to overcome gravity.
Sent 7: Do you need a giant rocket to overcome gravity?
Sent 8: No, you actually overcome gravity every day.
Sent 9: Think about when you climb a set of stairs.
Sent 10: When you do, you are overcoming gravity.
Sent 11: What if you jump on a trampoline?
Sent 12: You are overcoming gravity for a few seconds.
Sent 13: Everyone can overcome gravity.
Sent 14: You just need to apply a force larger than gravity.
Sent 15: Think about that the next time you jump into the air.
Sent 16: You are overcoming gravity for a brief second.
Sent 17: Enjoy it while it lasts.
Sent 18: Eventually, gravity will win the battle.

Question: Does gravity eventually win the battle between human and gravity? (true/0)

Yes, gravity will eventually take hold of a person on earth
Always
Sometimes

Question: Are you overcoming gravity when you climb a set of stairs? (false/1)

True
No
Yes
False

Question: What objects are still traveling away from Earth? (false/2)

Question: What happens when you climb a set of stairs? (false/3)

Question: How can humans overcome gravity? (true/4)

Question: What's an example refuting "What goes up must come down"? (true/5)

Question: Can everyone overcome gravity by applying a larger force than gravity? (true/6)

True
No
Yes
False

Question: What are some examples of overcoming gravity? (true/7)

Question: Can a person overcome gravity? (true/8)

Never
It is possible
Yes, by jumping up into the air or climbing stairs

Question: Are some spacecraft still floating in space above the earth? (true/9)

Maybe
Of Course
Yes, spacecraft still float above the earth

Question: Are you overcoming gravity for an hour when you jump on a trampoline? (true/10)

Question: Are the spacecraft we sent into space still traveling away from earth? (true/11)

No
Some are
They have all fallen back to Earth

Question: What allows us to overcome gravity? (false/12)

Question: How is gravity overcome? (true/13)

It is impossible
Magic
It is overcome by applying a force larger than gravity and overcoming gravity for a brief second
Spaceships
You need to apply logic
You can't
You need to apply a force larger than gravity

Question: What statement is no longer true? (true/14)

"What goes up must come down."
Everything is or isn't ice cream
What goes down must go up
The apple doesn't fall far from the tree
The only time the word 'incorrectly' isn't spelled incorrectly is when it's spelled incorrectly
What goes up, must come down

Question: Is the statement "What comes up must go down" no longer true? (false/15)

No
It is
It is still true

Paragraph: (Science-textbook/science-g3-26.txt)
Sent 1: Should places at the same distance from the equator have the same climate?
Sent 2: You might think they should.
Sent 3: Unfor- tunately, you would not be correct to think this.
Sent 4: Climate types vary due to other factors besides distance from the equator.
Sent 5: So what are these factors?
Sent 6: How can they have such a large impact on local climates?
Sent 7: For one thing, these factors are big.
Sent 8: You may wonder, are they as big as a car.
Sent 9: Think bigger.
Sent 10: Are they bigger than a house?
Sent 11: Think bigger.
Sent 12: Are they bigger than a football stadium?
Sent 13: You are still not close.
Sent 14: We are talking about mountains and oceans.
Sent 15: They are big features and big factors.
Sent 16: Oceans and mountains play a huge role in climates around the world.
Sent 17: You can see this in Figure above .
Sent 18: Only one of those factors is latitude, or distance from the equator.

Question: Name at least one factor of climate (true/0)

Paragraph: (Science-textbook/science-g3-25.txt)
Sent 1: Tropical climates are found around the equator.
Sent 2: These climates have warm temperatures year round.
Sent 3: Tropical climates may be very wet or wet and dry.
Sent 4: Tropical wet climates occur at or very near the equator.
Sent 5: They have high rainfall year round.
Sent 6: Tropical rainforests grow in this type of climate.
Sent 7: Tropical wet and dry climates also occur near the equator.
Sent 8: They receive less rainfall.
Sent 9: Most of the rain falls in a single season.
Sent 10: The rest of the year is dry.
Sent 11: Few trees can withstand the long dry season.
Sent 12: The main plants are grasses.
Sent 13: Dry climates receive very little rainfall.
Sent 14: They also have high rates of evaporation.
Sent 15: This makes them even drier.
Sent 16: Deserts can get less than 25 centimeters of rain per year.
Sent 17: Thats less than 10 inches per year.
Sent 18: How much rain do you get at your house?

Question: Which climates have warm temperatures year round? (true/0)

Question: What types of plants can survive the long dry season? (true/1)

Grasses
Trees
Forest trees
Few trees

Question: In a tropical wet and dry climate, in how much of the year does it rain? (true/2)

Question: How often do tropical rainforest's experience rain? (false/3)

Question: Which type of climate has high rainfall year round? (true/4)

Question: How much of the year do tropical rainforests receive high rainfall? (true/5)

Question: What climates have high rates of evaporation? (true/6)

Question: What are the climates around the equator like? (false/7)

Question: How much rainfall do the deserts receive? (true/8)

Question: Which climates have high rainfall year round? (true/9)

Question: What are the main plants in wet and dry climates? (true/10)

Grasses
Trees
The main plants are grasses

Question: What was the temperature all year round, in the given paragraph? (true/11)

Question: Do tropical wet and dry climates receive less or more rainfall than tropical wet climates? (true/12)

Less
More
More rain

Question: Why do tropical climates have warm weather? (false/13)

Found around the equator
They have high rainfall year around
They are at or very near the equator
They receive very little rainfall
They are near the north pole
Near dry climate

Question: Where are tropical climates found (true/14)

Far from the equator
Near or around the equator
Dessert
Near the poles

Question: What are two factors contributing to the dryness of deserts? (true/15)

Little rainfall, high evaporation
No rainfall, high temperature
There are few trees
They have high rates of evaporation
The main plants are grasses
No grasses, dryness
They receive little rainfall
Little rainfall, thirsty inhabitants
They receive very little rainfall, and the high rates of evaporation make them even drier

Question: Where do tropical rainforests grow? (false/16)

Question: Which climates have high rates of evaporation? (true/17)

Question: Where does it rain less than 10 inches a year? (true/18)

Paragraph: (Science-textbook/science-g5-73.txt)
Sent 1: So what is gravity?
Sent 2: A typical definition of gravity is that it is a force.
Sent 3: It causes an attraction between two masses.
Sent 4: According to this definition, anything that has mass exerts a force.
Sent 5: Any object exerts gravity on other objects.
Sent 6: It does not matter how small it is, it has gravity.
Sent 7: The more matter an object has, the more gravity it has.
Sent 8: Your pencil has a tiny bit of gravity, but far too little to notice.
Sent 9: What about a planet?
Sent 10: It would have a lot of gravity.
Sent 11: An objects gravity exerts a pull on other objects.
Sent 12: Friction only occurs between objects that are touching.
Sent 13: Gravity can act between objects that are not touching.
Sent 14: In fact, gravity can act over very long distances.
Sent 15: Where else can you feel gravity?

Question: What is gravity? (false/additional)

Question: What does the standard definition of gravity indicate? (false/additional)

Anything that has mass exerts a force of gravity and can exert that force on other objects
anything without mass exerts a force
The fewer matter an object has, the more gravity it has

Question: How does mass affect the force exerted? (false/challenge)

It does not matter how small it is, it has gravity.
The greater mass of the body, the greater the force exerted
The more matter an object has, the less gravity it has

Question: What factors affect gravity? (false/challenge)

Question: Do all objects exert gravity? (false/additional)

Yes all bodies exert gravity regardless of size and mass.
Yes, as long as it is big enough.
Yes, as long as it is magnetic.
Yes, as long as it is close enough.

Question: What would keep gravity from affecting two objects? (false/additional)

distance
If two objects are too far, gravity cannot act between them.
If two objects are touching, gravity cannot act between them.

Question: How do gravity and friction differ? (false/additional)

Friction only occurs between objects that are touching. Gravity can act between objects that are not touching.
Friction only occurs between objects that are not touching; Gravity can act between objects that are touching
friction occurs everywhere

Question: Does size matter as to whether or not an object has gravity? (false/additional)

no
yes

Question: Would a planet have more gravity than a pencil? (false/additional)

yes
no

Question: How do objects interact under gravity? (false/challenge)

Any object exerts gravity on other objects no matter how small it is, and the more matter an object has, the more gravity it has.
there is a pull
gravity causes an attraction between two masses
there is friction
friction causes an attraction between two masses

Question: How is friction different from gravity? (false/additional)

friction only occurs that are touching
Friction only occurs between objects that are touching but gravity can act between objects that are not touching.
friction occurs everywhere

Question: Does size matter when it comes to gravity? (false/additional)

any object has gravity no matter how small it is
no
Friction only occurs between objects that are not touching
yes

Question: Does the earth have gravity? (false/additional)

The earth has a lot of gravity, the more matter an object has the more gravity it has
yes
no

Question: What does an objects gravity cause it to do? (false/challenge)

Paragraph: (Science-textbook/science-g5-3.txt)
Sent 1: Magnetism is the ability of a material to be attracted by a magnet.
Sent 2: It also include the ability for some material to act like a magnet.
Sent 3: No doubt youve handled refrigerator magnets.
Sent 4: You can see some in Figure 1.28.
Sent 5: You probably know they stick to a metal refrigerator.
Sent 6: This is what holds your homework up.
Sent 7: Maybe your little sisters drawings are hung on the fridge in this manner.
Sent 8: Do magnets stick to all materials?
Sent 9: Of course not.
Sent 10: You have probably checked and they do not stick to other surfaces.
Sent 11: They do not stick to wooden doors or glass windows.
Sent 12: Wood and glass are not attracted to a magnet.
Sent 13: Obviously, only certain materials are attracted to magnets.

Question: Since magnets don't stick to some surfaces what can we conclude? (true/0)

Obviously, only certain materials are attracted to magnets
The magnets are fake
Wooden material
Only refrigerators are attracted to magnets
Magnets stick to all materials

Question: What do magnets not stick to? (true/1)

Question: What holds your homework up on a refrigerator? (false/2)

Question: Do Magnets stick to all materials? (true/3)

Question: What is magnetism? (true/4)

Ability of a material to be attracted by a fridge
Ability of a material to be attracted by wooden doors
Your little sisters drawings
Ability of a material to be attracted by a magnet or work as magnet
Is the ability of a material to be attracted by a magnet
Act like a magnet
Glass windows

Question: What doesn't a magnet stick to and what are examples of these materials? (true/5)

Glass materials like glass windows
Wood, wooden doors
Stick to surfaces, fridge
Metals like metal refrigerator
Your homework up
Wooden materials like wooden doors
Wood and glass. Wooden doors, glass windows
They doesn't stick to Wood or Glass ,for example They do not stick to wooden doors or glass windows

Question: What is magnetism and what is an example of this? (true/6)

The ability of a material to be attracted by a magnet, a refrigerator magnet
Little sisters drawings
Ability of a material to be attracted by a magnet. Example, refrigerator magnets attracting metal refrigerator doors
Ability of a material to be attracted by a fridge, wood
Ability of a material to be attracted by a magnet, metal refrigirator
Ability of a material to be attracted by glasses. Example refrigerator magnets attracting glass windows

Question: Give examples of materials to which magnets stick to and do not stick to. (true/7)

Question: Can you stick your sister's drawings to a wooden cupboard with a magnet? (false/8)

Question: What ability of material can also act like a magnet? (true/9)

Question: What do some magnets stick to? (true/10)

Question: What are some examples of things you can hold up by a magnet on a refrigerator? (true/11)

Question: Do magnets stick to all materials? (true/12)

Paragraph: (Science-textbook/science-g4-111.txt)
Sent 1: When land is cleared, habitats are lost.
Sent 2: It may be cleared for agriculture.
Sent 3: It may also be used for building new homes or businesses.
Sent 4: Within the past 100 years, the amount of land used for agriculture has almost doubled.
Sent 5: Land used for grazing cattle has more than doubled.
Sent 6: Many wetlands have also been lost to agriculture.
Sent 7: The U.S. has lost almost all the natural tall-grass prairies.
Sent 8: Thee areas of tall thick grass have virtually disappeared.
Sent 9: These areas of land had thick fertile soil.
Sent 10: Their grasses had very deep root systems.
Sent 11: These deep and thick roots reduced the amount of soil erosion.
Sent 12: They also were home to many plants and animals.
Sent 13: Prairies were wonderful places.
Sent 14: They were home to colorful flowers, prairie dogs, and herds of bison.

Question: In the last 100 years, how much has the agricultural clearing grown and how is it used? (true/0)

Doubled
Tripled
Selling land
Grazing cattle
It has tripled, and used for cattle
In the last 100 years, the agricultural clearing has doubled and is used for cattle grazing
Feeding humans has almost doubled; it is used for agricultural purposes

Question: What opportunities come from the loss of habitat due to clearing land? (true/1)

More humans can prance around
Land for agriculture
It may then be used for agriculture, homes or businesses
We have more room for cattle to graze
Land for prairie dogs

Question: Once home to colorful flowers, prairie dogs, and herds of bison, what types of places are cleared for new homes and businesses? (true/2)

Flatlands
Wetlands
Tall grass prairies
Prairies

Question: How can habitats be lost? (false/3)

Question: What are the reasons land is cleared? (true/4)

Question: Why do we clear land? (false/5)

Question: What types of land have been lost to agriculture? (true/6)

Question: What lived on prairies? (true/7)

Question: Why may land be cleared? (true/8)

Question: What types of animals did prairies contain? (true/9)

Question: What are the advantages of tall grass prairies? (true/10)

Buildings construction
Make the land look nice
Less erosion
Help prevent erosion
A place for animals to graze
They have thick fertile soil with deep rooted grass that helps to prevent soil erosion and are home to a varity of animals and plants
Home to many plants and animals
Fertile soil

Question: Within the last 100 years, what has land clearing done for agriculture and cattle? (true/11)

The amount of land used for both has almost doubled in size
It has tripled the amount of land used
It has double the amount of land used
It has decreased
It has grown

Question: What reduced the amount of soil erosion in grass? (true/12)

Paragraph: (Science-textbook/science-g4-73.txt)
Sent 1: The digestive system is the body system that digests food.
Sent 2: It digest food in two ways, mechanically and chemically.
Sent 3: Both help in the process of turning food into nutrients.
Sent 4: The digestive system also eliminates solid food waste.
Sent 5: The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines.
Sent 6: These organs all work together to help you gain energy from the food you eat.
Sent 7: Digestion starts in the mouth.
Sent 8: When food is swallowed, it travels through the esophagus to the stomach.
Sent 9: In the stomach, digestion continues and a small amount of absorption of nutrients takes place.
Sent 10: Most chemical digestion and nearly all absorption of nutrients take place in the small intestine.
Sent 11: This organ consists of three parts: duodenum, jejunum, and ileum.
Sent 12: The large intestine is the last stop in the digestive system.
Sent 13: This is where water is absorbed.
Sent 14: The food not digested is released as waste.

Question: Where does the absorption of nutrients take place? (true/0)

Question: Where does digestion begin and end? (true/1)

It begins in the mouth and ends in the large intestine
The nose, the ears
Begins and ends in stomach
Small Intestine and Large Intestine
Begins in esophagus and ends in small intestine
Mouth and Small Intestine
Mouth and Large Intestine

Question: What happens to the food and water in the large intestine? (true/2)

Water distributed, food absorbed
Water is absorbed and Food not absorbed is release as waste
Water absorbed, food waste eliminated
Water eliminated and nutrients are absorbed
Both food and water are released as waste
Waters is released as waste and Food is absorbed
Water is absorbed and food is eliminated as waste
It is flushed out

Question: What are the parts of the small intestine? (false/3)

Question: How is food digested? (true/4)

Via the esophagus all the way to the large intestine
Mechanically in the mouth and chemically in the stomach and small intestine
By stomach
Food is digested personally and chemically through a process that includes the mouth, esophagus, small intestine and large intestine
Chemically and mechanically
By large intestine
Food is digested mechanically and chemical through a process that includes the mouth, esophagus, small intestine and large intestine
Food is digested mechanically and chemical through a process that includes the mouth, esophagus, small intestine and bladder
Via the nose and to stomacch

Question: Why is the digestive system important? (true/5)

It helps regulate your waste
Absorbs waste
Organs all work together to help you gain energy from the food you eat
Helps you gain energy from the food you eat
Duodenum absorbs water
It turns food to nutrients
It digest food in two ways, mechanically and chemically. Both help in the process of turning food into nutrients, eliminates solid food waste
It makes you feel alive
It keeps you warm

Question: What does the digestive system do? (false/6)

Question: Where does the absorption part of digestion occur? (false/7)

Question: What are the two ways the digestion system turns food into nutrients? (true/8)

By water extraction and food waste elimination
Mechanically and chemically
Mechanical Digestion and Chemical Digestion
Personal Digestion and Chemical Digestion
Chemically, and intravenously
It digest food in two ways, mechanically and chemically
Chemical and mechanical
By absorbtion and metabolism
Mechanical Digestion and Normal Digestion

Question: What two things does the digestion system do for the body? (false/9)

Question: What are the three parts of the small intestine? (true/10)

Mouth, Esophagus, Stomach
The duodenum, the jejunum, the ileum
The colon, the duodenum, the esophagus
Esofagus and kidney
Ileum and dujenum
Large Intestine, Esophagus, Bladder

Question: How does food get from the mouth to the stomach? (true/11)

Question: What organs make up the digestive system and where does it start? (true/12)

The major organs of the digestive system include the mouth, esophagus, stomach, and small and large in- testines
The Mouth, Bladder, Small Intestine, and Large Intestine make up the digestive system. The digestive system starts in the stomach
It starts in the nose
The mouth, Esophagus, Small Intestine, and Large Intestine make up the digestive system. The digestive system starts in the small intestine
Stomach, and small and large in- testines, starts in stomach
Mouth, esophagus and stomach, starts in mouth
Mouth, esophagus, stomach, and small and large intestines, starts in mouth
It starts at the mouth and includes the esophagus, stomach, small and large intestine
The Mouth, Esophagus, Small Intestine, and Large Intestine make up the digestive system. The digestive system starts in the mouth

Question: In which part of the digestive system is water absorbed? (true/13)

Question: What two forms of digestion help to turn food into nutrients? (false/14)

Question: What are the parts of the organ where most nutrient absorption takes place? (true/15)

Question: What is the last organ of the digestive system and what does it do? (true/16)

Large Intestine. The large intestine absorbs water and release waste
The large intestine which absorbs water and releases waste
Small Intestine. The small intestine absorbs water and releases waste
Large Intestine. The large intestine absorbs nutrients
Small intestine absorbes waste
Large intestine absorbes water and eliminates waste
Edophagus transfers solid food waste
Absorbs water

Question: What does the digestive system do regarding waste? (true/17)

Question: What happens in the large intestine? (true/18)

Nutriets are absorbed
Food is mechanically decomposed
Nutrients are absorbed
Water is absorbed
Food is broken down into nutrients
Food is absorbed
This is where water is absorbed. The food not digested is released as waste

Paragraph: (Science-textbook/science-g4-40.txt)
Sent 1: Our sun and other stars release light energy.
Sent 2: At least this is what we see.
Sent 3: Our Sun and stars also emit more than just light.
Sent 4: Scientists call the type of energy that our Sun and stars release electromagnetic energy.
Sent 5: This form of energy travels through space.
Sent 6: Electromagnetic energy includes the light we see.
Sent 7: It also includes much more.
Sent 8: Many of these things we know about, but dont always think about.
Sent 9: Electromagnetic energy includes radio waves, microwaves, and X rays.
Sent 10: We now have devices in our homes and offices that release these same forms of energy.
Sent 11: We use electromagnetic energy to make our lives better.

Question: Which form of energy travels through space? (false/0)

Water powered energy
Electromagnetic energy
Electro magnetic energy
Sound energy

Question: Besides the sun and the stars, what releases electromagnetic energy? (false/1)

Question: What emits light? (true/2)

The sun and stars
Light bulbs
Earth

Question: What type of energy can we see? (false/3)

Light energy
Electro magnetic energy
Microwaves

Question: What is electromagnetic energy characterized as? (false/4)

Question: Does electromagnetic energy include only light? (true/5)

No
Yes
No. (It includes much more.)

Question: Why do we use radio waves, microwaves, and X rays? (false/6)

To fight our enemies
To spoil our lives
To make our lives better

Question: Where do X-rays, come from? (false/7)

Electromagnetic energy
From the hospital
The sun and other stars
Earth

Question: Our sun and stars release light energy but they also release what other kind of energy? (true/8)

Wind energy
Wind powered energy
Electromagnetic Energy
Electro magnetic energy

Question: What do we use electromagnetic energy for? (false/9)

To make our lives better
Devices in our homes and offices
Cars
Radio waves, microwaves, and X rays. We also use it to make our lives better
To power cars

Question: Where do radiowaves, come from? (false/10)

Electromagnetic energy
The stereo
The sun and other stars
Earth

Question: What does electromagnetic energy create that we see when it travels through space? (true/11)

Noise
Light
Comets

Question: Do light and radio waves travel through space? (true/12)

No
Only during the day
Yes

Question: Where do we use electromagnetic energy to make our lives better? (false/13)

Devices in our homes and offices
At the park
Our homes and offices
Cars

Question: What are the four forms of energy that are electromagnetic? (true/14)

Paragraph: (Science-textbook/science-g4-19.txt)
Sent 1: You just got done with a long run.
Sent 2: You are gasping for air.
Sent 3: Why does your body react this way?
Sent 4: What is the purpose of breathing?
Sent 5: All the cells of your body need oxygen to work properly.
Sent 6: Your bodys circulatory system works with the respiratory system to deliver the oxygen.
Sent 7: Your blood carries red blood cells.
Sent 8: The main job of red blood cells is to carry oxygen throughout your body.
Sent 9: The red blood cells get oxygen in the lungs.
Sent 10: The lungs are the main organs of the respiratory system.
Sent 11: The respiratory system is the body system that takes in oxygen.
Sent 12: It then releases carbon dioxide back to the atmosphere.
Sent 13: The carbon dioxide is the waste material from the cells.

Question: Do your blood carry red blood cells (false/0)

The respiratory system carries red blood cells
Red blood cells move through the blood
No
Yes
(this question is so badly phrased, I'm not sure what it's asking) CO2
Yes to get oxygen in the blood

Question: What body systems work together to bring in oxygen and release carbon dioxide? (true/1)

Question: What cells carry oxygen to the lungs? (false/2)

lungs cells
(if you really meant to say TO the lungs) red blood cells
White blood cells
Red blood cells

Question: What waste material do our cells release into the atmosphere? (true/3)

Paragraph: (Science-textbook/science-g4-55.txt)
Sent 1: Have you ever looked closely at a globe?
Sent 2: That continents look like a giant jig-saw puzzle.
Sent 3: North America looks like it could fit next to Europe.
Sent 4: The edge of South America matches Africa.
Sent 5: Scientists noticed these same features.
Sent 6: It caused them to start asking questions.
Sent 7: They wanted to know if these continents were was connected?
Sent 8: If so, how can something so large move so far?
Sent 9: What could possibly have enough force to move such a giant slab of rock?
Sent 10: Is there other evidence that can provide clues to the past positions of continents?
Sent 11: How can answering these questions help us?
Sent 12: A scientist named Alfred Wegener had these same questions.
Sent 13: Wegener look at rocks on both sides of the Atlantic Ocean.
Sent 14: He noticed they were the same type and age.
Sent 15: He thought that the rocks must have formed side by side.
Sent 16: He proposed that the rocks then drifted apart.
Sent 17: One part went with North America.
Sent 18: The other part stayed with Europe.

Question: What stayed in europe (true/0)

Question: Who noticed that rocks on both sides of the Atlantic ocean were the same type and age? (true/1)

Question: Which scientist noticed that rocks were the same on both sides of the Atlantic Ocean? (false/2)

Question: Wagner proposed that rocks drifted apart in which directions? (true/3)

Question: Which four continents from the paragraph look like they are connected like a jig saw puzzle? (false/4)

Question: Who thought that the rocks must have formed side by side (false/5)

Question: If you look at a globe closely what do the continents look like? (true/6)

Question: What were the same type and age (false/7)

Sides
The rocks on both side of the Atlantic ocean
Fish
Rocks

Question: What parts did Wegener say the layers of rock of the same size and age formed when drifting apart? (false/8)

Question: What features did the scientists notice (true/9)

Edges of South America matching with Africa
That the continents look like a giant jig-saw puzzle
Giant slab of work
North America next to Europe
The continents were the same size
North America looks like it could fit next to Europe. The edge of South America matches Africa
Fitting of rocks
Edges of the continents seem to fit together

Question: Why does Wegener propose the continents look like a giant jigsaw puzzle? (true/10)

They look like they could fit next to each other
Edge of South America matches Africa
He thought that the rocks must have formed side by side. He proposed that the rocks then drifted apart
Move continents
They're colorful
North America looks like it could fit next to Europe
Type and age

Question: He proposed that the rocks formed side by side and then drifted where? (true/11)

Question: What went to north America (false/12)

Question: How would the jigsaw like continents fit together? (true/13)

Move continents
North Amrerica next to Europe
Europe and Atlantic Ocean
North America looks like it could fit next to Europe. The edge of South America matches Africa
Europe fits next to Africa, and South America fits next to Europe

Paragraph: (Science-textbook/science-g3-22.txt)
Sent 1: Plants also detect the daily cycle of light and darkness.
Sent 2: Do you know how plants respond to these changes?
Sent 3: Some plants open their leaves during the day.
Sent 4: It is during these hours the plant can collect sunlight.
Sent 5: At night, the plant closes its leaves to prevent water loss.
Sent 6: Many plants respond to the change in the length of the day.
Sent 7: As days grow shorter, some plants respond by going dormant.
Sent 8: Dormant is when a plant suspends its growth.
Sent 9: It does this in order to survive.
Sent 10: Shorter days signal the coming of winter.
Sent 11: Winter in most areas means extreme cold.
Sent 12: It is also very dry in the winter months.
Sent 13: As winter approaches, some plants respond by their leaves changing color.
Sent 14: After the change in color, they fall off.
Sent 15: This dormancy period helps trees.
Sent 16: It allows them to survive the cold and dry winter.
Sent 17: Plants only want to grow when conditions are right.

Question: What do some plants do when days grow shorter? (false/0)

Some plants store as much water as possible
Some plants go dormant
The leaves change color and fall off
Go dormant
Some plants close their leaves so they don't freeze off

Question: Does a plant suspend its growth when days get longer, or when days get shorter? (true/1)

When the length of sunlight during the day decreases, nothing happens
When days get shorter
When sunlight during the day increases
When days get longer

Question: What is it about winter that makes it difficult for plants to survive? (false/2)

Winter in most areas means extremely cold and dry conditions
In most areas, winter kills plants and trees
In winter the days are shorter, there is extreme cold and it is also very dry
Winters can be very cold and dry
Winters can be very cold and rainy

Question: What happens to plants when winter approaches? (false/3)

As winter approaches plants leaves fall off and they enter a dormancy period which allows them to survive cold dry winters
Some plants go dormant
Some plants' leaves change color then fall off
Plants close their leaves to prevent water loss
Plants grow as fast as possible to survive the winter

Question: What happens with growth rate in some plants when days grow shorter? (true/4)

A plant may grow quickly before winter sets in
In some plants, the growth rate will slow or stop
It will go dormant
The plants suspend the growth rate
The growth rate remains the same as when days are longer

Question: Why do plants close their leaves at night? (true/5)

So they don't die in the nighttime chill
Because the sun isn't out
To prevent water loss
So they don't dry out

Question: Do some plants' leaves fall off in the winter months? (true/6)

No, they fall off in the autumn only
All plants lose their leaves in the winter
Yes
Some plants and trees lose their leaves in the winter months

Question: What are two ways we might suspect a tree has become dormant? (true/7)

Its growth has stopped and the leaves have fallen off
Tree leaves may have changed color, or the leaves may have fallen off
Its leaves have changed color and it dies
It grows faster and bears fruit
Leaves have changed color and suspend its growth

Question: Why do some plants go dormant in winter? (true/8)

So that it can survive winter
It allows them to survive the cold and dry winter
Because it is dying
To survive the very wet winter conditions
To survive extremely cold and dry conditions

Question: Why might a plant open its leaves during the day? (false/9)

So that it can gather more light
So they can change color
To catch raindrops
To collect sunlight

Question: How do plants respond to changes in light conditions during the day and night? (true/10)

Plants may close their leaves during the day to prevent burning and open them at night to collect moisture
They collect sunlight on open leaves in the day and close them at night to prevent water loss
Plants open their leaves during the day to collect sunlight and close them at night to prevent water loss
Open leaves in the day and close them at night
Their leaves change color during the day and turn green again at night

Question: What happens to some plants' leaves after they change color as winter approaches? (true/11)

The leaves may fall off to help it survive a cold, dry winter
The leaves turn green again
They start to grow again
They fall off

Question: Why do plants open their leaves during the day? (true/12)

To collect more sunlight
So they can dry themselves
They detect daylight and open their leaves in order to collect sunlight
To collect water
So they can get as much sunlight as possible

Question: What are the right conditions for plants to grow in? (true/13)

Somewhat cold and dry
Long days, enough moisture and warmer temperature
There needs to be sunlight and water
Warm and moist conditions
Very dry and hot conditions

Question: When and why do plants go dormant? (false/14)

As winter approaches, to survive extreme cold and dry winters
When the days get shorter, so the cold and dry winter doesn't kill them
They do so as the days get shorter, in order to survive
During the summer, to prevent extreme water loss
As summer approaches, to save energy for new leaves

Question: What are two ways some plants might respond to daily cycles? (false/15)

A plant may open its leaves to collect sunlight during the day and close them at night to prevent water loss
A plant may open its leaves at night to collect moonlight and close them during the day to prevent loss of moisture
A plant may change the color of its leaves and stop its own growth
By opening their leaves during the day and closing them at night
Some plants open their leaves during the day. At night, the plant closes its leaves

Question: How do plants respond as the length of the day changes? (true/16)

Question: Is suspended growth required for plants to survive? (true/17)

Some plants go dormant to survive
Yes, all plants and trees suspend their growth
Yes
It is for some plants
Yes, if they are to survive autumn

Question: What two things happen to a plants' leaves as winter approaches? (true/18)

They may change color and fall off
A plant may grow more leaves to prepare for winter
The leaves change color and then fall off the plant
A plants' leaves may fall off after their color changes
A plants' leaves turn purple and dry up

Question: What happens to a plant when it goes dormant in order to survive? (false/19)

It stops growing
Its leaves grow faster and but the plant stops growing taller
The plant suspends growth
Its leaves may change color and fall off, and its growth may stop
The plant will die

Question: Why is dormancy beneficial for plants? (true/20)

Dormancy lets plants grow when the weather is cold and dry
Dormancy allows plants to collect more sunlight
It allows them to only grow when conditions are right
It allows them to survive the cold and dry winter
It allows them to survive winter

Paragraph: (Science-textbook/science-g4-14.txt)
Sent 1: You may wonder if there are other examples of static discharge.
Sent 2: The answer is yes.
Sent 3: Lightning is a form of static discharge.
Sent 4: It is much more dramatic than what happens between you and the door knocker, but it is the same principle.
Sent 5: You can see how it occurs in the following diagram and animation.
Sent 6: You have no doubt seen lightning in a rainstorm.
Sent 7: What does lighting have to do with static electricity?
Sent 8: As it turns out, everything!
Sent 9: During a rainstorm, clouds develop regions of different charges.
Sent 10: This happens due to the movement of air molecules, water drops, and ice particles.
Sent 11: The negative charges are concentrated at the base of the clouds.
Sent 12: The positive charges are concentrated at the top.
Sent 13: The negative charges repel electrons on the ground below.
Sent 14: The ground then becomes positively charged.
Sent 15: Over time the differences increase.
Sent 16: Eventually the electrons are discharged.
Sent 17: This is what we see as lightning.
Sent 18: You can watch an awesome slow-motion lightning strike below.

Question: What happens to electrons to make them turn into lightning? (false/0)

The negative charges repel electrons on the ground below
Electrons gets discharged
Electron becomes neutrally charged
Electrons repel negative charge on ground below
They discharge
Eventually the electrons are discharged
Slow-motion
Electrons change their properties

Question: What are we seeing when we see lightning? (true/1)

Discharge of electrons is what we see as lightining
Protons getting discharged from sky
We see positive charge getting discharged
Electrons getting discharged from clouds
The discharge of electrons

Question: Are there other examples of static discharge? (true/2)

Question: What do we see when electrons are discharged? (true/3)

Question: Is lightning a form of static discharge? (true/4)

No
Yes
Agree
Disagree

Question: What are two examples of static discharge? (true/5)

Question: How do clouds develop different regions of charges? (true/6)

Due to dynamic discharge property of lightning
Through the movement of molecules, water drops, and ice particles
Because of motion present in air molecules, water drops, and ice particles
Because of movement of air molecules, water drops, and ice particles
Because positive charges are concentrated at the base of the clouds

Question: What does lightning have to do with static electricity? (false/7)

Lightning is a form of dynamic energy
Lightning is a form of static energy
Lightning is an example of static energy
As it turns out, everything
Everything!
Air molecules
Lightning and static energy are poles apart

Question: How is the top of a cloud different from the base of the cloud during a rainstorm? (true/8)

The positive charges are concentrated at the top
Top of cloud is neutral in charge
Bottom of cloud has dormant charge
He negative charges repel electrons on the ground below
Top and bottom clouds have opposite charges
Top and bottom clouds are oppositely charged
Negative charges are concentrated at the cloud base and positive charges are concentrated at the top

Question: How does ground become positively charged? (false/9)

The negative charges which are concentrated at the base of the clouds repel electrons on the ground below
The negative charges from the cloud base repel electrons on the ground below
The positive charges which are concentrated at the base of the clouds attract electrons on the ground below
Positive charges at the base of the clouds.attract electrons on the ground below
Negative charges at the base of the clouds.repel electrons on the ground below

Question: How can different regions of clouds have different charges? (true/10)

Due to dynamic discharge property of lightning
Because of motion present in air molecules, water drops, and ice particles
Because of movement of air molecules, water drops, and ice particles
It is due to the movement of air molecules, water drops, and ice particles
Because positive charges are concentrated at the base of the clouds

Paragraph: (Science-textbook/science-g3-31.txt)
Sent 1: How would the universe look without gravity?
Sent 2: It would have no planets and no stars.
Sent 3: Thats how it looked when it was young.
Sent 4: When the universe was young, there was only gas and dust.
Sent 5: From this gas and dust, everything we now see was made.
Sent 6: How were stars and planets created from just gas and dust?
Sent 7: The answer is gravity.
Sent 8: The same gravity that holds you down on Earth.
Sent 9: The same force that causes your pencil to roll off your desk.
Sent 10: The same force that causes it to fall to the floor.
Sent 11: The invisible force of gravity caused dust and gas particles to be pulled together.
Sent 12: This force is what formed all the objects in our solar system.
Sent 13: This force formed the smallest moons.
Sent 14: It also formed our Sun.
Sent 15: This force caused more than just our solar system to form.
Sent 16: It caused all the other solar systems to form.
Sent 17: It caused the formation of all the galaxies of the universe.

Question: Did the universe always have a sun? (true/0)

No
Yes
It came before the universe
No, the universe did not have planets or stars, only gas and dust, from which the Sun was created

Question: What are some things that gravity does? (true/1)

It cooks the food and forms water
Causes gas and dust
Gravity holds you down on earth and causes your pencil to roll off your desk
Destroy planets and stars
Gravity holds you down on Earth. it causes your pencil to roll off your desk. it causes it to fall to the floor
Makes your pencil to roll off your desk
Holds you down on earth

Question: Did gravity cause more than one solar system to form? (true/2)

Yes
No one knows

Question: What has gravity formed in our universe? (true/3)

Question: What force formed all of the objects in the solar system? (true/4)

Centrifugal force
Mechanical force
Gravity
Inertia

Question: What does gravity do on Earth? (false/5)

It holds you to the earth
Nothing
Holds you down on Earth, causes pencils to roll off a desk, and to hit the floor
It caused objects to be pulled toward the earth
It helps to prepare food
Gravity holds us down on Earth
It makes objects move away from each other

Question: What force causes your pencil to fall to the floor and also formed every object in the universe? (true/6)

Centrifugal force
Mechanical force
Gravity
Inertia

Question: Without gravity the universe would be nothing more than? (false/7)

Space
Gas and dust
Planets and stars
Nothingness

Question: What does gravity do to the universe? (false/8)

It helps to form stars and planets
It pulls objects together
It helps to form food and wter
It forms gas and dust
It pulls objects apart
Creates stars and planets from just dust and gasses by pulling them together

Question: How would the universe look without gravity? (true/9)

Question: What did role did gravity play in the creation of the universe? (false/10)

It caused all the other solar systems to form. It caused the formation of all the galaxies of the universe
It played no role
It did not exist until the formation of the universe
It formed the planets, stars and galaxies
It helped in the formation of dust and gas
It helped in the formation of stars and planets

Question: Gravity pulled dust and gas particles together to form? (true/11)

Question: How would the universe look without gravity when it was young? (false/12)

No planets, stars or galazies
It would look like it does now
There would be no planets or stars, and just dust and gasses
There would be fewer planets
There would be more stars and planets
Planets and stars
Gas and dust particles

Question: What force causes pencils to roll off your desk and fall to the floor? (false/13)

Centrifugal force
Mechanical force
Gravity
It's cylindrical shape

Question: What did gravity form? (true/14)

Question: How was the universe made? (false/15)

From this gas and dust,by using gravity
The force of gravity made gas and dust to be pulled together
It was made from gravity acting on gas and dust
From food and water
By black holes
By light from stars

Question: What created the Sun and moon? (false/16)