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Definition
| The process that breaks down rock and other substances at Earth's surface. |
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| The movement of rock particles by wind water ice and gravity |
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Mechanical Weathering
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Definition
| The type of weathering in which rock is physically broken into smaller pieces. |
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| The grinding away of rock by rock particles carried by water ice wind or gravity. |
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Definition
| 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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Definition
| A material is full of tiny connected air spaces that allow water to seep through it |
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| The loose weathered material on Earths surface in which plants can grow |
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Definition
| The solid layer of rock beneath the soil |
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Definition
| A dark colored substance that forms as plant and animal remains decay |
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Definition
| Soil that is made up of about equal parts of clay sand and silt |
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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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Definition
| A crumbly dark brown soil hat is a mixture of humus clay and other minerals |
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Definition
| The layer of soil beneath the topsoil that contains mostly clay and other minerals |
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Definition
| The loose layer of dead plant leaves and stems on the surface of the soil |
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Definition
| An organism that breaks down large molecules and returns important materials to te enviroment |
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Definition
| A thick mass of grass roots and soil |
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Definition
| A resource that is naturally replaced in a relatively short time |
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Definition
| The area of the Great Plains where wind erosion caused soil loss during the 1930's |
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Definition
| The management of soil to prevent its destruction |
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Definition
| The process of plowing fields along the curves of a slope to prevent soil loss |
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Term
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Definition
| Soil conservation method in which the dead stalks from the previous year's crops are left in the ground to hold the soil in place |
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