Weathering

Makes rocks smaller but doesn't change them in any other way.

Physical or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Weathering of marble by acid rain.

Physical or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

When rocks get hot and then cold and they crack.

Physical Weathering or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Sand abrasions on cliffs.

Physical or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Tree roots grow and break apart rocks.

Physical or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Rocks falling in landslides.

Physical or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Rocks that are changed by chemicals in the water or air.

Physical Weathering or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Acid rain causing the calcite in limestone and marble to make holes.

Physical Weathering or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

Salt can cause.....

Chemical Weathering or Physical Weathering?

• Physical

  Weathering

• Chemical

  Weathering

When the iron in rocks causes it to rust.

Physical Weathering or Chemical Weathering?

• Physical

  Weathering

• Chemical

  Weathering