Weathering, Erosion & Deposition

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Terms in this set (13)
a gradual wearing away or changing of rock and soil caused by water, ice, temperature changes, wind, chemicals, or living things
Image: Weathering
Chemical weathering
occurs when chemicals (like acid) react with rocks to change them into different materials.
Image: Chemical weathering
Mechanical weathering
The breakdown of rock into smaller pieces without a change in chemical composition.
Image: Mechanical weathering
a large, slow-moving sheet of ice that scrapes and carves away at the land surface. Glaciers can change landforms and create lakes in their path.
Image: Glacier
a pile of soil (sediment) at the end of a river.
the laying down, or settling, of pieces of rock or soil by water, ice, and wind
Image: Deposition
the breakdown and transport of pieces of soil or rock from a place on Earth's surface to another by machanisms including gravity, wind,water,ice, or plants and animals
Image: Erosion
a rapid downhill movement of large amounts of rock and soil
Image: Landslide
any earth material that has been moved from one place to another and layed down on the surface of Earth; includes materials moved by gravity, wind, water, or ice
Image: Sediment
What is an area next to a river that forms from repeated deposition called?
the force behind most agents of erosion
a feature that makes up the Earth's surface (examples: plain, valley, mountain)
windblown accumulations of sand

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