Weathering Formative

The natural chemical or physical processes that breaks down rock on Earth's surface.

• weathering

• erosion

• deposition

• compaction

The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another.

• weathering

• erosion

• deposition

• compaction

These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:

• ice wedging
• acid rain
• permeability
• abrasion

How is mechanical weathering different from chemical weathering?

• Chemical weathering happens over much shorter time frame than mechanical weathering.
• Chemical weathering changes the chemical composition of rocks; mechanical weathering does not.
• Chemical weathering occurs only in tropical climates; mechanical weathering occurs only in cool climates.
• Chemical weathering occurs only in the mountains; mechanical weathering occurs only on flat land.

Which type of weathering results when oxidation (rusting) occurs?

• Both mechanical and chemical

• Chemical

• Mechanical

How might a weathered mountain appear different from an unweathered mountain?

• The weathered mountain would be taller

• The weathered mountain would appear rounder in shape

• The weathered mountain would appear more jagged

• The weathered mountain would contain fewer trees

Carbonic acid is a mixture of:

• Water and carbon dioxide

• Calcite and quartz

• Oxygen and hydrogen

• Water and limestone

Abrasion causes

• mechanical weathering.

• chemical weathering.

• both chemical and mechanical weathering.

• Neither chemical or physical weathering.

Acid rain causes

• physical weathering.
• chemical weathering.
• both chemical and physical weathering.
• neither chemical or physical weathering.

Abrasion is the process by which rocks

• become cemented together to form bigger rocks.

• become pitted (covered with small holes).

• hit against one another.

• break apart when water freezes.