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10 Cards in this Set
- Front
- Back
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~a breakdown process
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weathering
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~breakdown of rock into smaller pieces by physical means
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mechanical weathering
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~water is different than most subtances on earth b/c it expands when it freezes
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ice
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~rock and sediment grinding against eachother and wearing away exposed surfaces
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abrasion
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~plants roots fins their way into cracks-->cracks get bigger
~slow but powerful |
plants
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~water seeps into cracks in rocks, freezes and expands
~crak gets bigger over time |
ice wedging
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erathworms moving through soil expose new surfaces to weathering
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animals
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chemical breakdown of rocks and minerals into new subtances
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chemical weathering
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carbonic acid, sulfuric acid (volcanoes), nitric acid, (volcanoes) are foun in percipitation
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acid percipitation
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may contain weak acids, carbonic acid, and sulfuric acid
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acid ground water
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