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Earths surface ch.2
Term | Definition |
---|---|
uniformitarianism | The geological principle that the same geologic processes that operate today operated in the past to change earths surface. |
erosion | the process by which water, ice, wind, or gravity moves weathered particles of rock and soil |
weathering | the chemical and physical processes that break down rock and other substances. |
mechanical weathering | the types of weathering in which rock is is physically broken into smaller pieces. |
chemical weathering | the process that breaks down rock through chemical changes. |
abrasion | the grinding away rock by other rock particles carried in water, ice, or wind. |
frost wedging | process that splits rock when water seeps into cracks, freezes then expands. |
oxidation | a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust. |
permeable | characteristic of a material that contains connected air spaces, or pores, that water can seep through easily. |