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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 |