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20 Cards in this Set
- Front
- Back
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Weathering
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Breaking down of stuff
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erosion
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the movement of stuff
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deposition
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depositing of stuff
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frost wedging
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water freezes to ice in a crack in a rock. ice widens and splits rock.
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root wedging
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root of a tree grows in between a rock and splits rock.
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mechanical weathering
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The actual, physical breaking up, and weakening rock by forces such as ice and roots.
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chemical weathering
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process of which the actual chemical structure of the rock is changed.
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Acid Rain
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Rain with chemicals that kill plants and animal life, and eats away at the surface of stone and rock.
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Carbonic Acid
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H20+C02= Carbonic acid. Dissolves limestone.
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Water erosion
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Water carries sediment that acts as sand paper. Sediment eventually settles at end of river.
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wind erosion
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2nd biggest cause of erosion. especially in dry areas where plants grow. sandstorms act as sandblasters.
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glacier erosion
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As they move they carry dirt, rocks, and boulders. Glaciers carve out U-shaped Valleys.
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water deposition
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EX. river delats, mud slide
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wind deposition
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EX. Sand dunes, snow drifts
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glacier deposition
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EX. boulders, lake basins
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moraine
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a ridge-like mass of rock, gravel, sand, and clay carried and deposited by a glacier.
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sediment
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small particles of soil
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delta
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a deposit at the mouth of the river
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U shaped valleys are caused by
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Glacier Erosion
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V shaped valleys are caused by
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Rivers
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