4.1b Chemical Weathering

Front

Agents of Chemical Weathering

Back

Water

Oxygen

Carbon Dioxide

Living Organisms

Acid Rain

Front

Oxidation

Back

Oxidation is a chemical change when a substance combines with oxygen, such as rust.

Front

Carbon Dioxide

Back

When combined with water, carbon dioxide creates a weak acid, carbonic acid, which dissolves some rocks.

Front

Living Organisms

Back

Plant roots produce weak acids that slowly dissolve rocks.

Front

Acid Rain

Back

Rain is slightly acidic due to burning coal, oil, or gas, causing pollution that increases the acid strength.

Front

Climate

Back

The average weather condition in an area.

Front

Permeable Rocks

Back

Rocks full of tiny connected air spaces that allow water to seep through.

Front

Hot and Wet Climates

Back

Encourage more chemical reactions.