Term
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Definition
| the process that breaks down substances at earths surface |
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Term
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Definition
| the movment of rock particles by wind, water, ice, or gravity. |
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Term
| mechanical (physical) weathering |
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Definition
| the type of weathering in which rock is physically broken down into smaller pieces |
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Definition
| refers to the grinding away of rock by rock particles carried by water, ice, wind, or gravity |
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Term
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Definition
| wedges of ice in rocks widen and deepen cracks |
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Definition
| the process that breaks down rock through chemical changes |
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Definition
| it means that a material is full of tiny, connected air spaces that allow water to seep through it |
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Definition
| the loose, weathered material on Earth's surface in which plants can grow |
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Term
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Definition
| a dark-colored substance that forms as plants and animal remains decay |
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Term
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Definition
| as plants shed leaves, they form a loose layer |
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Definition
| the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals |
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Term
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Definition
| the thick mass of tough roots at the surface of the soil/keeps the soil in place and holds onto moisture |
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Term
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Definition
| one that is naturally replaced in a relatively short time |
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Term
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Definition
| the area where wind erosion caused severe loss of topsoil during the 1930's |
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Term
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Definition
| the management of soil to prevent its destruction |
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Term
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Definition
| the practice of plowing fields along the curves of a slope |
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Term
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Definition
| disturbs the soil and its plants cover as little as possible |
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Term
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Definition
| the solid layer of rock beneath the soil |
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Definition
| soil that is made up of about equal parts of clay, sand, and silt |
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Term
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Definition
| a layer of soil that differs in color and texture from the layers above or below it |
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Term
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Definition
| a crumbly dark brown soil that is a mixture of humus, clay, and other materials |
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Term
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Definition
| usually consists of clay and other particles washed down from the A horizon, but little humus |
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Term
| factors that cause mechanical weathering |
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Definition
| cracking or pelling rocks |
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Term
| discribe 3 causes of chemichal weathering |
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Definition
| water,oxygen,and carbon dioxide |
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