Term
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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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Term
| Mechanical weathering (physical) |
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Definition
| The type of weathering in which rock is physically broken into smaller pieces. |
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Term
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Definition
| The grinding away of rock by rock particles carried by water, ice, wind, or gravity. |
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Definition
| The process that splits rock when water seeps into the cracks, then freezes and expands. |
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Definition
| 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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Definition
| The loose, weathered material on Earth's surface in which plants can grow. |
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Definition
| The solid layer of rock beneath the soil. |
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Term
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Definition
| The dark-colored substance that forms as plant and animal remains decay. |
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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 that is a mixture of humus, clay, and other minerales. |
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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
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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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Definition
| the thick mass of tough roots at the surface of the soil. |
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Definition
| One that is naturally replaced in a relatively short time. |
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Definition
| An 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
| soil that is made up of about equal parts of clay, sand, and silt. |
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Term
| What factors cause mechanical weathering? |
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Definition
| freezing and thawing, release of pressure, growth of plants, and actions of animals. |
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Term
| The 3 causes of chemical weathering |
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Definition
| Water, oxygen, and carbon dioxide |
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Term
| What factors affect the rate of weathering? |
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Definition
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Term
| Why does chemical weathering occur faster in hot wet climates than in cool, dry climates? |
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Definition
| Chemical reactions occur faster at higher temperatures. |
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