Weathering Review

Front

Weathering

Back

breakdown of rock material by physical and chemical processes

Front

Physical weathering

Back

breakdown of rocks into smaller pieces by natural processes; does not change chemical composition

Front

Abrasion

Back

rock reduced in size by scraping against other rocks by wind, water, and gravity

Front

Acid

Back

chemical substance that dissolves some metals and minerals

Front

Chemical weathering

Back

chemical breakdown and decomposition of rocks by natural processes

Front

Oxidation

Back

chemical reaction where material combines with oxygen to form new material

Front

Acid precipitation

Back

rain, sleet, or snow with high concentration of acids

Front

Exfoliation

Back

outer layer of rock peels away due to pressure change

Front

Agents of Physical Weathering

Back

temperature changes, pressure changes, wind, water, gravity, plant and animal actions