Term
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Definition
| the process that breaks down rock and other substances at Earth's surface |
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Term
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Definition
| the movement of rock particles by wind, water, ice, or gravity |
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Term
| mechanical weathering/ physical weathering |
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Definition
| the type of weathering in which rock is physically broken into smaller pieces |
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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
| 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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Term
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Definition
| 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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Definition
| the solid layer of rock beneath the soil |
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Term
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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 of below it |
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Definition
| a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals |
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Term
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Definition
| usually consists of clay and other particles washed down from the topsoil,but little humus |
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Definition
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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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Term
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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
| it disturbs the soil and its plant cover as little as possible |
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Term
| factors that cause mechanical weathering |
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Definition
| release of pressure, freezing and thawing, plant growth, abrasion, and animal actions |
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Term
| three causes of chemical weathering |
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Definition
| produces rock particles that have different mineral makeup frome the rock they came from, it creates holes or soft spots in rock, and |
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Term
| factors that affect the rate of weathering |
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Definition
| the type of rock and climate |
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Term
| why chemical weathering occurs faster in hot, wet climats than in cool,dry climates |
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Definition
| it occurs faster in hot,wet climates,because rainfall provides the water needed for chemical changes and chemical reaction occur faster at higher temperatures. and chemical changes occur slower in dry and hot climates |
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