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PCS Earth Science
Ch 7 vocab
Term | Definition |
---|---|
Weathering | breakdown of rocks on Earth's surface |
Erosion | transporting Earth's materials from one place to another |
Frost wedging | break down of rock due to alternates of freezing and melting in cracks. |
Exfoliation | the outer layer of rocks are stripped away |
Mechanical weathering | physical breaking of rock which does not change the rock's composition only the size and shape |
Hydrolysis | break down of rick by water dissolving the minerals |
Oxidation | break down of rock by oxygen reacting with the minerals |
Deposition | when sediments are laid down in another place |
Rill Erosion | looks like small channels on the side of a slope caused from running water |
Gully Erosion | larger channels of water caused from running water |
Soil Profile | a vertical sequence of soil layers |
Soil Horizon | a distinct layer or zone in the soil profile |
Chemical Weathering | rocks and minerals undergo change in their chemical composition |
Soil | loose covering of broken rock particles and decaying organic matter |
Residual Soil | soil that comes from the parent material at that location |
Transported Soil | soil that was moved from another place through erosion |