| A | B |
|---|
| Erosion | Movement of soil or rocks to a new place. |
| Weathering | Breakdown of larger rocks to smaller ones. |
| Deposition | The dropping off of or sedimentation of soil, sand or rocks. |
| Oxidation | Chemical reaction with oxygen. Example, rusting. |
| Ice Wedging | Weathering of rocks as a result of water freezing. |
| Thermal Expansion | Increase in size due to heat. |
| Uplift | Upward heaving of the Earth's surface. |
| Exfoliation | Scaling or peeling of rock layers. |
| Chemical Weathering | Process that breaks down rock through chemical change. |
| Mechanical Weathering | Physical breakdown of rocks. |
| Biotic | Living organisms or products of living organims. |
| Abiotic | Environmental factors that are nonliving--light, air, water, etc. |
| Abrasion | The wearing away as a result of scraping or rubbing. |
| Acid Rain | Rainwater that is more acid than normal rainwater. |
