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Definition
| The process that breaks down rock and other substances at Earth's surface. |
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Definition
| The movement of rock particles by wind, water, ice, or gravity. |
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| Mechanical Weathering [Physical] |
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Definition
| The type of weathering in which rock is physically brocken into smaller pieces. |
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| Refers to the grinding away of rock by rock particles carried by water, ice, wind, of gravity. |
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| Wedges of ice in rocks widen and deepen cracks. |
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| The process that breaks down rock through chemical changes. |
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| A material is full of tiny, conennected air spaces that allow water to seep through it. |
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Definition
| The loose, weathered material on Earth's surface which plants can grow. |
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Definition
| The solid layer of rock beneath the soil. |
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Definition
| The layer of soil that differs in color and texture from the layers above or below it. |
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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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Definition
| As plants shed leaves, they form a loose layer. |
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| The organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals. |
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| An area where wind erosion caused severe loss of topoil during the 1930's. |
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Definition
| The management of soil to prevent destruction. |
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Definition
| The practice of plowing fields along the curves of a slope. |
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Definition
| Soil that is made up of about equal parts of clay, sand, and silt. |
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Definition
| The thick mass of tough roots at the surface of the soil. |
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Definition
| One that is naturally replaved in a relatively short time |
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Definition
| Dark-colored substance that forms as plant and animal remains decay. |
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Definition
| A crumby, dark brown soil that is a mixture of humus, clay, and other minerals. |
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Term
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Definition
| Disturbs the soil and its plant cover as little as possible. |
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