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