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12 Cards in this Set
- Front
- Back
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Weathering |
Process of breaking down rock. Can be physical or chemical. |
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Mechanical Weathering |
Breaking down rock through physical force (ice, wind, water, gravity) |
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Chemical Weathering |
Change caused by chemical reaction (ex. Water, acids, air) |
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Abrasion |
Mechanical weathering that occurs when two different rocks or materials grind or scrape against each other. |
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Ice Wedging |
When the water freezes ice expands breaking rocks apart. |
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Examples of Mechanical Weathering |
Plants, abrasion, wedging, water, animals, gravity |
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Examples of Chemical Weathering |
Air/oxidation, acid in precipitation (rain and snow), acids in ground water, acid in living things. |
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Ventifacts |
Rocks that have been shaped by blowing sand |
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Gravity |
One rock falling against another |
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Weak acids |
Compounds formed by burning of fossil fuels combine with water in the atmosphere. |
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Oxidation |
Chemical reaction in which an element combines with oxygen to form an oxide. |
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Rust |
When oxygen in the air mixes with metal, this occurs. |
