Term
| When does mechanical weathering occur? |
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Definition
| Mechanical weathering occurs when physical forces break rock into smaller and smaller pieces without changing the rock's mineral composition. |
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Term
| Name three physical processes that cause mechanical weathering.... |
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Definition
| Frost wedging, uploading , and biological activity |
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Term
| Describe frost wedging.... |
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Definition
| When liquid water freezes, it expands by about 9 percent, exerting a tremendous outward force |
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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 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
| Chemical weathering is 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
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Term
| Given an example of a characteristic.... |
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Definition
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Term
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Definition
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Term
| Name the 4 major components of soil.... |
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Definition
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Term
| What are the most important factors in soil formation? |
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Definition
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Term
| Soil varies in composition and at different depths.... |
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Definition
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Term
| What are three common types of soil? |
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Definition
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Term
| How do human activities affect rates of erosion? |
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Definition
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Term
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Definition
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Term
| What triggers mass movements? |
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Definition
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Term
| How do geologists classify mass movements? |
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Definition
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Term
| When does rockfall occur? |
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Definition
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Term
| How mudflows differ from earthflows? |
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Definition
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