Term
| When does mechanical weathering occur? |
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Definition
| Occurs when physical forces break rock into smaller and smaller pieces without changing the rock's mineral composition. |
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Term
| Name the three physical processes that causes mechanical weathering. |
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Definition
| Frost wedging, unloading, and biological activity. |
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Term
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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
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Term
| Explain chemical weathering. |
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Definition
| Is the transformation of rock into one or more new compounds. |
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Term
| What 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 a rock? |
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Definition
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Term
| What two factors affect the rate of weathering? |
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Definition
| Rock characteristics and climate. |
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Term
| Give an example of a rock characteristic? |
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Definition
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Term
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Definition
| Weathering produces a layer of rock and mineral fragments. |
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Term
| Name the 4 major components of soil. |
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Definition
| Mineral matter, organic matter, water, and air |
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Term
| What are the most important factors in soil formation? |
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Definition
| Parent material, time, climate, organisms, and slope. |
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Term
| Soil varies in composition......, ......., and ......... at different depths. |
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Definition
| Texture, structure, and color at different depths. |
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Term
| What are the three common types of soil? |
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Definition
| Pedalfer, pedocal, and laterite |
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Term
| How do human activities affect rates of erosion? |
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Definition
| They remove natural vegetation, such as farming, logging, and construction |
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Term
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Definition
| The transfer of rock and soil down slope due to gravity. |
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Term
| What triggers mass movement? |
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Definition
| Are saturation of surface materials with water, over steepening of slopes, removal of vegetation, and earthquakes |
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Term
| How do geologists classify mass movements? |
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Definition
| Based on the kind of material that moves, how it moves, and the speed of movement. |
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Term
| When does rockfall occur? |
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Definition
| When rocks or rock fragments fall freely through the air. |
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Term
| How do mudflows differ from earthflows? |
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Definition
| Mud flows are flows that moves quickly and Earth flow are flows that moves slowly. |
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