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)