Chemical WeatheringChemical Weathering

What is it?

How does it happen?

What do the effects look like?

What is it?

How does it happen?

What do the effects look like?

Chemical WeatheringChemical Weathering

Chemical weathering is…

…breaking down rock by chemical changes

Chemical weathering is…

…breaking down rock by chemical changes

What factors contribute to chemical weathering?What factors contribute to chemical weathering? Water Oxygen Carbon dioxide Living things produce chemicals Acid rain

Water Oxygen Carbon dioxide Living things produce chemicals Acid rain

WaterWater

Water is the most important cause of chemical weathering. Water breaks down rock by DISSOLVING it:

Water is the most important cause of chemical weathering. Water breaks down rock by DISSOLVING it:

Chemical Weathering: waterChemical Weathering: water

Chemical weathering: oxygenChemical weathering: oxygen Oxygen can cause chemical changes to rock: rocks that contain

iron look rusty

Oxygen can cause chemical changes to rock: rocks that contain iron look rusty

Chemical weathering: oxygenChemical weathering: oxygen Rocks that contain copper tend to turn

green:

Rocks that contain copper tend to turn green:

Chemical WeatheringChemical Weathering

The atmosphere naturally contains CO2

Carbon dioxide in the atmosphere is dissolved by rainwater, and can cause both man-made and natural features to chemically weather.

The atmosphere naturally contains CO2

Carbon dioxide in the atmosphere is dissolved by rainwater, and can cause both man-made and natural features to chemically weather.

Chemical weathering: plants and microbesChemical weathering: plants and microbes Living things produce acids that can speed up weathering: Living things produce acids that can speed up weathering:

Chemical weathering: acid rainChemical weathering: acid rain The CO2 and sulfur compounds in the atmosphere have

increased significantly since the industrial revolution:

The CO2 and sulfur compounds in the atmosphere have increased significantly since the industrial revolution: