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Ch 7 Vocab. Words
Term | Definition |
---|---|
weathering | chemical or mechanical process that breaks down and changes rocks on or near Earth's surface and whose rate is influenced by factors such as precipitation and temperature |
mechanical weathering | process that breaks down rocks and minerals into smaller pieces but doesn't involve any change in their compotition |
frost wedging | mechanical weathering process that occurs when water repeatedly freezes and thaws in the cracks of rocks, often resulting in rocks splitting |
exfoliation | mechanical weathering process in which outer rock layers are stripped away, often resulting in dome-shaped formations |
chemical weathering | process by which rocks and minerals undergo changes in their composition |
oxidation | chemical reaction of oxygen with other substances |
erosion | the removal of weathered rock and soil form its original location |
deposition | after materials are transported, they're dropped in another location |
rill erosion | develops when running water cuts small channels into the side of a slope |
gully erosion | when a channel becomes deep and wide |