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Science Unit 4 Test
Chemical Weathering, Mechanical Weathering, Erosion, Deposition
| Term | Definition |
|---|---|
| Surface Processes | a process affecting the geosphere at or near Earth's surface and driven mostly by external energy, such as weathering and erosion |
| Mechanical Weathering | physical weathering is the process that breaks rocks apart without changing their chemical composition |
| Chemical Weathering | chemical bonds are broken through chemical reactions to disintegrate and decompose rocks |
| Erosion | the removal and transport of materials by natural agents such as wind and running water |
| Deposition | the process by which materials are dropped, such as sand or silt by a stream |
| Sediment | solid particles such as weathered rock fragments, materials from organisms, or minerals that settle out of solution, which are transported and deposited at or near Earth's surface |
| Glacier | a slowly moving mass of ice formed by the accumulation and compaction of snow on mountains or near the poles |
| Frost Wedging | a process where water freezes inside cracks in the rocks, causing expansion, pushing the rock apart, then the ice melts. repetition of this process creates sediment |
| Surface Area | the total area that the surface of an object occupies |
| Oxidation | when a mineral, rock, soil, or dissolved chemical loses electrons, usually by reacting with oxygen, leaving behind rust |
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akoek2217