Physical Weathering Processes

• Secondary Education

OBJECTIVES

Identify the various physical weathering processes.

Explain the steps involve in the development of each type.

Describe the conditions under which each process occurs best.

PHYSICAL WEATHERING

What are the major physical weathering processes?

Physical Weathering

• Insolation Weathering
• Freeze-Thaw Weathering
• Wetting and Drying
• Salt Chrystallization
• Pressure Release

Insolation Weathering

Exfoliation

FROST ACTION

BLOCK DISINTIGRATION

Salt Christallization

Granular/Block Disintigration

Wetting and Drying

Common in areas experiencing a wet and dry season. 

High variation in moistue contributes to rapid disintigration.

The absorbtion of water creates no chemical change in rocks.

Pressue Release

Exfoliation

What type of weathering process is shown in the picture?

1. Salt Weathering
2. Pressure Release
3. Biotic Weathering
4. Insolation Weathering

This type of weathering takes place in areas of high diurnal temperatures.

1. Salt Weathering
2. Physical Weathering
3. Wetting and Drying
4. Insolation Weathering

Physical weathering occurs best in locations where it is hot and wet.

1. True
2. False

Name one weathering by temperature change is dominant

1. Salt Crystallization
2. Pressure Release
3. Freeze-Thaw
4. Exfoliation

Explain two ways in which weathering is affected by climate

Describe and explain the type of weathering shown in the image.