Unit 4: Changes in the Earth's Surface

Front

What are constructive forces?

Back

Constructive forces are natural processes that create landforms by building up materials, such as sand dunes formed by wind depositing sand.

Front

What are destructive forces?

Back

Destructive forces are natural processes that erode or destroy landforms, such as rivers cutting through rock to form canyons.

Front

Give an example of a landform created by a constructive process.

Back

An island formed by the cooling lava of a volcanic eruption.

Front

Give an example of a landform created by a destructive process.

Back

A canyon formed by flowing water carving through rock.

Front

What is the difference between constructive and destructive forces?

Back

Constructive forces create landforms, while destructive forces erode or destroy them.

Front

How do sand dunes form?

Back

Sand dunes form through the constructive process of wind depositing sand in one location.

Front

What role do tectonic plates play in landform creation?

Back

Tectonic plates can push together to form mountains, which is a constructive process.

Front

What is a delta and how is it formed?

Back

A delta is formed by the accumulation of sediment at the mouth of a river, showing a constructive process.

Front

What is erosion?

Back

Erosion is the process by which natural forces like water, wind, or ice wear away rocks and soil.

Front

What is sediment?

Back

Sediment is small particles of rock and soil that are transported and deposited by wind, water, or ice.