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Definition
| It is the process that breaks down rock and other substances at Earth's surface. |
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Definition
| It is the movement of rock particles by wind, water, ice, and gravity. |
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| Mechanical Weathering (physical) |
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Definition
| Is the type of weathering in which rock is phsically broken into smaller pieces. |
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Definition
| It refers to the grinding away of rock by rock particals carried by water, ice, wind, and gravity. |
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Definition
| It is wedges is ice in rock widen and deepen cracks. |
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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
| It is the process that braks down rock through chamicla changes. |
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Definition
| it is the loose, Weethered material on Earth's surface in which plants can grow. |
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Definition
| It is the soild layer of rock beneath the soil. |
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Definition
| Its the decayed organic material in soil. |
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Definition
| Its soil that is made up of about equel part of clay, sand, and silt. |
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Definition
| ITs the layer of fsoil that differs in color and texture from the layers above or below it. |
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Definition
| Its a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals. |
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Definition
| Its usually consits of clay and other particals washed down from the soil horizon, but a little humus. |
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Definition
| When plants shed leaves, they form a loose layer. |
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Definition
| They are organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals. |
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Definition
| Its the thick mass of tough roots at the surface of the soil- kept the soil in place and held onto moisture. |
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Term
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Definition
| Is one that is naturally replaced in a relativly short time. |
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Term
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Definition
| It was an area where wind erosion caused severe loss of topsoil during the 1930's. |
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Term
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Definition
| Its the mangement of soil to prevent its destruction. |
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Term
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Definition
| Its the pratice of plowing fields along the curves ofa slope. |
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Term
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Definition
| Its disturbs the soil and its plant cover as little as possible. |
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Term
| What factors cause mechanical weathering? (sec.1) |
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Definition
| freezing, thawing, relese of pressure, growth of plants, and actions of animals. |
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Term
| Decribe three causes of chemical weathering. |
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Definition
| Oxygen, carbon dixide, living organisms,and acid rain. |
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Term
| What factors affect the rate of weathering? |
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Definition
| the important factors determine teh rate at whihc weathering occurs are type of rock and climate. |
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Term
| Explain why chemical weathering occur faster in hot, wet climates than in cool, dry climates. |
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Definition
| Cemical reactions occur fastere in higher tempreatures. |
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Term
| What role does weathering play in the formation of soil?(sec.2) |
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Definition
| It takes place slowly in areas where the climate is cold and dry. |
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Term
| What are the different materials that make up soil? |
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Definition
| Gravel, sand, silt, and clay. |
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Term
| How do plants and animals affect the formation and compostion of soil? |
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Definition
| They break up the soil, opening spaces for water and air. |
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Term
| how do forest soils diffrer from prairie soils? |
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Definition
| Forest is cool, and wet and prairie is cool, and dry. |
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Term
| Explain the importance of soil as one of Earth's resource.(sec.3) |
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Definition
| Its an importance because everything tha lives on land depends directly or indirectly on soil. |
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Term
| How did settlers on the Great Plains help create the Dust Bowl? (sec.3) |
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Definition
| Plowinng removed the grass from the Great Plains and exposed the soil. In times of drought, topsoil quickly dried out, turned t odust, and blew away. |
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Term
| What are some techiques that farmers use to conserve soil?(sec.3) |
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Definition
| Some techiques that farmers use are Soil Conservation, Contou Plowing, and also Conservation Plowing. |
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