Term
| When does mechanical weathering occur? |
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Definition
| when physical forces break rock into smaller pieces without changing the rock's mineral composition. |
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Term
| name the three physical processes that cause mechanical weathering. |
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Definition
| frost wedging, unloading, and biological activity |
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Term
| describe the frost wedging. |
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Definition
| The mechanical breakup of rock caused by the expansion of freezing water in cracks and crevices |
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Term
| slabs of outer rock separate like the layers of an onion and break loose in a process called. |
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Definition
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Term
| what is meant by biological activity? |
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Definition
| the activities of organisms, including plants, burrowing animals, and humans, can also cause mechanical weathering. |
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Term
| explain chemical weathering |
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Definition
| The transformation of rock into one or more new compounds. |
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Term
| ______ is the most important agent of chemical weathering. |
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Definition
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Term
| can chemical weathering change the physical shape of rock? |
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Definition
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Term
| What two factors affect the rate of weathering? |
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Definition
| Characteristics and climate |
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Term
| give an example of a rock characteristic |
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Definition
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