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rock and weathering
Term | Definition |
---|---|
Weathering | is the process that breaks down rocks and other substances |
Mechanical Weathering | a type of weathering where rock is physically broken |
Chemical Weathering | is the process that breaks down rock through chemical change |
Abrasion | wearing away rock by rock particles carried by water,ice,wind, and gravity |
Uniformitarianism | the geological principal that the same processes that operate in the past to change earths surface |
Erosion | the process of wearing down and carrying away rocks |
Frost Wedging | water freezes in rocks and expands than forces rocks apart |
Oxidation | iron combines with oxygen in the presence of water causing rust |
permeable | a material that is ful of tiny connected air spaces that allows water to seep through it |
Soil | weathered material on the earths surface in which plants can grow |
Bedrock | a layer of rock under the soil |
Humus | |
Subsoil | |
Topsoil | |
Fertility | |
Loam | |
PH Scale | |
Soil Horizon | |
Decomposer | |
Soil Conservation | |
Crop Rotation | the system of varying successive crops in a definite order on the same ground, especially to avoid depleting the soil and to control weeds, diseases, and pests. |
Contour Plowing | plowing along the contours of the land in order to minimize soil erosion. |
Conservation Plowing | is a soil conservation method in which the dead stalks from the previous year's crop are left in the ground to hold the soil in place. Soil can be conserved through |
Natural Resources | materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain. |