Physical weathering

Front

What is soil?

Back

A mixture of weathered rock, organic matter, water, and air that evolves over time and supports the growth of plant life.

Front

What is frost wedging?

Back

A process that occurs when water repeatedly freezes and thaws, causing rocks to break apart.

Front

What is abrasion in weathering?

Back

The wearing away of rocks and soil by wind, water, or gravity.

Front

What is physical weathering also known as?

Back

Mechanical weathering.

Front

What role does temperature play in physical weathering?

Back

Temperature changes can cause rocks to expand and contract, leading to cracks and breaks.

Front

How does plant growth contribute to weathering?

Back

Roots of plants can grow into cracks in rocks, causing them to break apart.

Front

What is the main difference between physical and chemical weathering?

Back

Physical weathering breaks rocks into smaller pieces without changing their chemical composition, while chemical weathering alters the minerals in the rocks.

Front

What is erosion?

Back

The process by which soil and rock are removed from one location and transported to another by wind, water, or ice.

Front

What is the effect of wind on weathering?

Back

Wind can carry small particles that wear away rocks and soil through abrasion.

Front

What is the role of water in weathering?

Back

Water can cause physical weathering through freezing and thawing, and it can also contribute to chemical weathering.