Unit 4: Changes in the Earth's Surface

Front

What are Constructive Forces?

Back

Constructive forces are natural processes that create landforms, such as mountains and islands, by building up the Earth's surface.

Front

What are Destructive Forces?

Back

Destructive forces are natural processes that erode or destroy landforms, such as weathering and erosion caused by water, wind, and ice.

Front

What is Erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as water, wind, or ice.

Front

What is Weathering?

Back

Weathering is the breaking down of rocks and minerals into smaller pieces by natural processes, including physical, chemical, and biological actions.

Front

How do tectonic plates create mountains?

Back

Mountains are formed when tectonic plates push together slowly over time, causing the Earth's crust to fold and rise.

Front

What is a Sea Arch?

Back

A sea arch is a natural rock formation that is created by the erosion of waves on coastal cliffs.

Front

What is a Delta?

Back

A delta is a landform created at the mouth of a river where it meets a body of water, formed by the deposition of sediment carried by the river.

Front

What is an Island?

Back

An island is a landform surrounded by water, which can be formed by volcanic activity, such as the cooling of lava.

Front

What is Deposition?

Back

Deposition is the process by which sediments, soil, and rocks are added to a landform, often occurring in areas like riverbanks and deltas.

Front

What is a Canyon?

Back

A canyon is a deep valley with steep sides, often formed by the erosion of rock by flowing water over a long period.