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Topic 9 Lessons 1&2

Weathering and Soil AND Erosion and Deposition

erosion The process by which wind, water, ice or gravity moves weathered particles of rock and soil.
mechanical weathering A type of weathering in which rock is physically broken into smaller pieces.
chemical weathering The process that breaks down rock through chemical changes.
soil The loose, weathered material on Earth's surface in which plants grow.
sediment Small, solid pieces of material that come from rocks or the remains of organisms; earth materials deposited by erosion.
deposition Process in which sediment is laid down in new locations.
mass movement One of the processes that move sediment downhill. Can be fast or slow.
deflation The process by which wind removes surface materials.
sand dune A deposit of windblown sand.
Created by: KHow424