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Weathering

Weathering: Breaking It Down

TermDefinition
weathering the process by which rocks are broken down by physical (mechanical) or chemical processes
mechanical weathering the breakdown of rock into smaller pieces by physical means
ice wedging when water seeps into cracks, freezes, and expands causing the crack to become larger; type of mechanical weathering
abrasion the grinding and wearing away of rock by sand or other rocks rubbing against each other by wind, water and gravity; type of mechanical weathering
plant roots roots grow into existing cracks and make the cracks larger as the root grows; type of mechanical weathering
burrowing animals animals dig through the soil and move soil particles around; type of mechanical weathering
chemical weathering the process by which rocks break down as a result of chemical reactions
acid precipitation rain, sleet, or snow that contains high concentrations of acid; type of chemical weathering
oxidation a chemical reaction where oxygen in the air reacts with iron causing the object to rust; type of chemical weathering
lichens type of plant that produce and release acid that slowly break down rock; type of chemical weathering
biological weathering weathering or breaking down of rock by living things
differential weathering the process by which softer, less weather resistant rocks wear away and leave harder, more weather resistant rocks behind
climate the weather conditions in an area over a long period of time
Created by: jaguarscience
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