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weathering
| Term | Definition |
|---|---|
| weathering | the process by which rock materials are broken down by the action of physical or chemical processes. |
| chemical weathering | The process by which rocks break down as a result of chemical reactions |
| mechanical/ physical weathering | is the breakdown of rock into smaller pieces by physical means. |
| ice wedging | The alternate freezing and thawing of soil and rock |
| abrasion | grinding and wearing away of rock surfaces through the mechanical action of other rock or sand particles |
| plant growth | Plants often send their roots into existing cracks in rocks. As the plant grows, the force of the expanding root becomes so strong that the crack widens. Eventually, the entire rock can split apart |
| animal actions | motion breaks some rocks into smaller pieces |
| water | dissolves the chemicals that make up rock |
| acid precipitation | Rain, sleet, or snow, that contains a high concentration of acids |
| ground water | water flowing through rock, underground (may contain weak acids) |
| living organisms | weak acids made in all living things bodies thing touches rock & acids are transferred rock is weakened and chemical weathering removes rock |
| oxygen | oxygem in the air reacting with metals |
Created by:
krisna.patl
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