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15
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What can pick up small rocks causing them to scrape against each other eventually wearing away the rocks?
Running water and wind.
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5
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True or false: Repeated freezing and thawing of water breaks rocks apart.
True.
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5
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What is the wearing away and movement of weathered rocks called?
Erosion
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5
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True or False: People can only change the land in small ways.
False.
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What two living things cause weathering?
Plants and animals.
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banana
Go to last place!
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star
Double points!
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rocket
Go to first place!
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thief
Give points!
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25
5
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True or False: The weathering of rocks can take thousands of years.
False.
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5
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What happens if trees are not replanted?
Soil can wash away.
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10
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What causes erosion to happen quickly?
Floods.
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5
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Large rocks break into smaller rocks. Small rocks break down into sand and soil. What is the name of this?
Weathering.
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seesaw
Swap points!
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fairy
Take points!
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25
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fairy
Take points!
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25
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banana
Go to last place!
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5
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How does gravity cause erosion?
By pulling weathered materials downhill.
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5
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How do glaciers move rocks?
The ice at the bottom of a glacier moves, it tears rocks out of the ground. As a glacier melts, it leaves rocks in a new place.
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5
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True or false: A glacier moves across land quickly.
False.
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eraser
Reset score!
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star
Double points!
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gift
Win 25 points!
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baam
Lose 10 points!
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5
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True or False: Deposition is the dropping off of rocks.
False.
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