Weathering and Erosion
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Created by:
sparkles525 on May 23, 2012
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9 terms
Terms | Definitions |
|---|---|
 Weathering | The chemical and physical processes that break down rock on Earth's surface. |
| Erosion | The process by which water, ice, wind or gravity moves weathered rock or soil. |
| Uniformitarianism | The geologic principle that the same geologic processes that operate today operated in the past to change Earth's surface. |
| Mechanical weathering | The type of weathering in which rock is physically broken into smaller pieces. |
| Abrasion | The grinding away of rock by other rock particles carried in water, ice or wind. |
| ice wedging | Process that splits rock when water seeps into cracks, then freezes and expands. |
| Chemical weathering | The process that breaks down rock through chemical changes. |
| oxidation | A chemical change in which a substance combines with oxygen, as when iron oxides, forming rust. |
| Permiable | Characteristic of a material that is full of tiny, connected air spaces that water can seep through. |
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