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10 Cards in this Set
- Front
- Back
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weathering
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the process that breaks down rock and other substances of Earth's surface
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erosion
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the removal of rock particles by wind, water, ice, or gravity
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mechanical weathering
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the type of weathering in which rock is physically broken into smaller pieces
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The 5 causes of mechanical weathering
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freezing and thawing, release of pressure, plant growth, actions of animals, abrasion
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ice wedging
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when water expands when it freezes and acts as a wedge
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chemical weathering
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the type of weathering in which rock is broken down through chemical changes
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The 5 causes of chemical weathering
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water, oxygen, carbon dioxide, living organisms, and acid rain
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oxidation
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when iron combines with oxygen in the presence of water to form rust
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The 2 most important factors that determine the rate at which weathering occurs
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type of rock and climate
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permeable
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full of air spaces that allow water to seep through it
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