Surface Processes - Weathering-Soils

Front

What is weathering?

Back

Weathering is the process of breaking down rocks and minerals into smaller pieces through physical, chemical, or biological means.

Front

What are the two main types of weathering?

Back

The two main types of weathering are physical (mechanical) weathering and chemical weathering.

Front

How does freezing water contribute to weathering?

Back

Freezing water expands in volume, which can cause cracks in rocks to widen and eventually break the rocks apart.

Front

What is abrasion in the context of weathering?

Back

Abrasion is the process of rocks being worn down by friction and impact with other rocks or particles, often in water.

Front

What is chemical weathering?

Back

Chemical weathering involves the chemical alteration of minerals in rocks, often through reactions with water, acids, or gases.

Front

Give an example of chemical weathering.

Back

An example of chemical weathering is the dissolving of limestone by acid rain.

Front

What role do plants play in soil erosion?

Back

Plants help prevent soil erosion by holding dirt in place with their roots.

Front

What is the effect of water expanding when it freezes?

Back

When water freezes, it expands, which can exert pressure on surrounding rocks and contribute to their weathering.

Front

What is the result of abrasion in water on rocks?

Back

Abrasion in water typically results in rocks becoming rounded and smooth.

Front

What is physical weathering?

Back

Physical weathering is the mechanical breakdown of rocks into smaller pieces without changing their chemical composition.