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Physica Geography
Weathering and Erosion
| Question | Answer |
|---|---|
| The breakdown of rock at or near the earth's surface | Weathering |
| When rock is actually broken or weakened physically | Mechanical Weathering |
| Alters a rock's chemical makeup by changing the minerals that form the rock, or combining them with new elements. | Chemical Weathering |
| Chemicals in the polluted air combine with water vapor and fall back to earth | Acid Rain |
| Is the movement of weathered materials such as gravel, soil, and sand. | Erosion |
| Water expands when it freezes, the ice widens the crack and eventually splits the rock | Frost Wedging |
| One of the major causes of erosion, expecially in areas with little water and few plants to hold soil in place. The Dust Bowl was an example. | Wind Erosion |
| The greatest cause of erosion. Moving water--rain, rivers, streams and oceans. | Water Erosion |
| Huge slow moving sheets of ice. Move over many years as layers of unmelted snow are pressed together | Glaciers |
| The reaction of Iron and Oxygen. | Rust |
Created by:
Orioles
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