S1 Weathering/Soil Word Scramble
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| Question | Answer |
| Breaking down of rock and other substances at Earth's surface | weathering |
| Movement of rock particles by wind, water, ice, or gravity | erosion |
| The 2 types of weathering | chemical & mechanical |
| Rock is physically broken down into smaller pieces | mechanical weathering |
| 5 forces of mechanical weathering | release of pressure, plant growth, freezing and thawing, abrasion, animal activity |
| The grinding away of rock by rock particles carried by water, ice, wind, or gravity | abrasion |
| Rock is broken down through chemical changes | chemical weathering |
| 5 agents of chemical weathering | water, oxygen, carbon dioxide, living organisms, acid rain |
| Most important cause of chemical weathering | water |
| Causes iron to rust | oxygen |
| The process by which oxygen weathers rock | oxidation |
| Forms carbonic acid | carbon dioxide |
| Pollution can change water into this | acid rain |
| These living organisms have a mild acid in their roots that eats away rock | lichens |
| Most important factors that affect the rate of weathering | type of rock, and climate |
Created by:
judi829
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