Term
| What is mechanical weathering? |
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Definition
| When physical forces breaks rock into smaller and smaller pieces without changing the rock's mineral composition |
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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
| When water freezes it volume ? |
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Definition
| Its volume expands about 9 percent excerting outward force |
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Term
| Which of the following is not associated with mechanical weathering? |
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Definition
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Term
| What is chemical weathering ? |
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Definition
| Transformation of rock into one or more new compounds |
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Term
| Which of the following is the result of chemical weathering? |
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Definition
| A rock that has been changed into one or more new compounds |
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Term
| The atmospheric gas that forms a mild acid when dissolved in water is ? |
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Definition
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Term
| What would cause the inscription on a marble gravestone to become harder are harder to read overtime ? |
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Definition
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Term
| What climate does chemical weather favor the most? |
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Definition
| Climates and high temperatures and abundant moisture's |
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Term
| What are the major components of soil? |
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Definition
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Term
| A soil's texture is determined by? |
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Definition
| Clay, silt, and sand int he soil |
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Term
| The main source of organic matter in soil is __. |
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Definition
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Term
| Use figure 5-1 to determine what a soil is called if it has 20 percent clay, 60 percent silt, and 20 percent sand |
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Definition
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Term
| What are the proportions of clay, silt, and sand shown at point B in figure 5-1 |
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Definition
| Clay 20 percent , silt 40 percent , sand 30 percent |
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Term
| What are the proportions of clay, silt, and sand shown at point A in figure 5-1 |
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Definition
| clay 60 percent , silt 20 percent and sand 20 percent |
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Term
| What are the proportions of clay, silt and sand shown at point C in figure 5-1 |
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Definition
| clay 10 percent , silt 20 percent and sand 70 percent |
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Term
| A soil associated with the hot and wet tropics are ? |
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Definition
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Term
| Pedalfer soils contain high amounts of? |
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Definition
| Iron oxide and aluminum rich clays |
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Term
| The processes responsible for moving material downslope under the influence of gravity is called? |
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Definition
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Term
| What is the force behind mass movements ? |
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Definition
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Term
| A mass movement that involves the sudden movement of a block of material along a flat, inclined surface is called the ___? |
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Definition
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Term
| Which of these factors affects the rate of weathering? |
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Definition
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Term
| Why can the removal of vegetation trigger mass movements ? |
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Definition
| The plants roots behind the soil and regolith togeather |
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Term
| In the process of ________, water freezes and expands , enlarging cracks in rocks |
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Definition
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Term
| A large pile of debris that forms at the base of a slope is called? |
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Definition
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Term
| What is the most important agent of chemical weathering? |
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Definition
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Term
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Definition
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Term
| The forces that drives mass movements is ____? |
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Definition
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Term
| What is the content of the soil type Pedocal? |
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Definition
| Abundant calcite or calcium carbonate and are typically light grey brown |
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Term
| What is the location and content of the soil type Laterite? |
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Definition
| Found in hot, wet tropics areas |
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Term
| One of the most dramatic triggers of sudden mas movements is an? |
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Definition
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Term
| ____________, the slowest type of mass movements , involves the lifting and contracting of soil particles overtime |
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Definition
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Term
| What are the three factors that affect the rate of weathering ? |
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Definition
| Mechanical weathering rock characteristics and climates |
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Term
| How are soils classified based on texture? |
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Definition
| You use the percentage of clay silt and sand |
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Term
| Explain the three processes that breaks rocks into smaller pieces during mechanical weathering ? |
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Definition
| Frost wedging unloading and biological activity |
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