Unit 4: Changes in the Earth's Surface

Front

What are constructive forces?

Back

Constructive forces are natural processes that create landforms, such as volcanic eruptions and sediment deposition.

Front

What are destructive forces?

Back

Destructive forces are natural processes that erode or destroy landforms, such as weathering and erosion.

Front

What is weathering?

Back

Weathering is the process of breaking down rocks into smaller pieces due to factors like water, ice, and temperature changes.

Front

What is erosion?

Back

Erosion is the movement of weathered materials from one location to another, often caused by wind, water, or ice.

Front

What is deposition?

Back

Deposition is the process where sediments are laid down in new locations, forming new landforms like beaches and deltas.

Front

How do waves contribute to deposition?

Back

Waves can carry sand and other materials and deposit them on beaches, creating new landforms.

Front

What is an example of erosion by wind?

Back

An example of erosion by wind is the movement of sand dunes in a desert.

Front

What is the difference between weathering and erosion?

Back

Weathering breaks down rocks, while erosion moves the broken materials to new locations.

Front

What role does ice play in weathering?

Back

Ice can cause weathering by expanding in cracks of rocks when it freezes, leading to further cracking.

Front

What is an example of a constructive process?

Back

An example of a constructive process is the formation of a new island from volcanic activity.