Weathering

Decaying plants dissolve some of the minerals in the rocks.

• Physical Weathering

• Chemical Weathering

The wedging of tree roots along natural joins in granite outcrops.

• Physical Weathering

• Chemical Weathering

Limestone dissolved by carbonic acid

• Physical Weathering

• Chemical Weathering

The oxidation of minerals that contain iron.

• Physical Weathering

• Chemical Weathering

Animal burrows dug in rock that let water and air in.

• Physical Weathering

• Chemical Weathering

Repeated freezing and thawing of water that cracks rocks.

• Physical Weathering

• Chemical Weathering

Acids from plant roots which break up rocks

• Physical Weathering

• Chemical Weathering

Formation of potholes in streets during severe winters

• Physical Weathering

• Chemical Weathering

Lifted sections of sidewalk along tree lined streets.

• Physical Weathering

• Chemical Weathering

A large rock falling from a cliff and then breaking.

• Physical Weathering

• Chemical Weatheirng