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W.E.D.

Weathering, Erosion and Deposition

TermDefinition
Weathering A process in which rocks at Earth's surface are gradually broken down into smaller pieces and eventually into soil.
Erosion The geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
Chemical Weathering A process in which rocks are transformed and worn away by chemical reactions. For example, dissolving of limestone and the transformation of minerals into clay.
Mechanical Weathering A process in which rocks are physically worn away without changing their chemical composition.
Frost Wedging A process of mechanical weathering in which water seeps into cracks and freezes. The ice puts pressure on the rock, enlarging the crack.
Root Wedging A process of mechanical weathering in which roots grow into the cracks in rocks and force the cracks open as they grow.
Deposition The geological process in which sediments, soil and rocks are added to a landform or land mass. Wind, ice, water and gravity transport previously weathered surface material which is deposited, building up layers of sediment.
Sediment Weathering breaks rock down into smaller pieces called sediment.
Created by: venusrehs
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