Lesson 4 and 5 Changing and cycling of Earth surface

Front

What is erosion?

Back

The process by which natural forces move weathered rock.

Front

What is mechanical weathering?

Back

Mechanical weathering breaks apart rocks by physical processes.

Front

How does water act as a weathering agent?

Back

Water dissolves minerals in rocks.

Front

What type of valleys do glaciers carve into mountains?

Back

U-shaped valleys.

Front

What is a valley glacier?

Back

A stream of ice that flows between steep rock walls in mountains.

Front

What is deposition?

Back

The process by which sediment is laid down in new locations.

Front

What is abrasion in the context of weathering?

Back

The grinding and wearing away of rock surfaces through mechanical action.

Front

What is chemical weathering?

Back

Chemical weathering occurs when chemical reactions dissolve or change the minerals in rocks.

Front

What role do glaciers play in shaping the Earth's surface?

Back

Glaciers carve out valleys and shape mountains through erosion.

Front

What is the difference between a valley glacier and an ice sheet?

Back

A valley glacier flows between mountains, while an ice sheet covers large areas of land.