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G1 Ch3 L3 Changing the Land
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What is sand made of? How's it made?
Tiny pieces of rock broken down by ocean waves, wind, etc.
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How can plants help to prevent erosion?
They hold the soil in place so wind and water can't move it.
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What's moving water that flows into a lake or ocean called?
RIVER.
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How can people change Earth’s surface? Name TWO ways.
cut down trees, smooth out land, dig lakes/ponds, build houses, etc.
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How can beavers change the surface of the Earth?
They chew trees until they fall down and make their homes (dams/lodges) with them, which can block water.
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What is the biggest difference between mountains and valleys?
ELEVATION. Mountains are high land and valleys are low land.
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What's happening in this picture?
The ROOTS of a tree are splitting the rock.
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What's it called when rock and soil and are moved to a new place by wind and water?
EROSION.
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Where do small rocks, dead plants, and dead animals go?
SOIL.
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What's is called when weather changes the size and shape of rocks?
WEATHERING.
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