Changes to Earth's Surface

Front

What is erosion?

Back

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

Front

What is deposition?

Back

Deposition is the process in which sediment, soil, and rocks are added to a landform or land mass, often after being transported by erosion.

Front

What landform is created by glacial movement?

Back

A U-shaped valley is formed by the movement of glaciers, which carve out the landscape.

Front

What is weathering?

Back

Weathering is the breaking down of rocks and minerals into smaller pieces by natural forces such as water, ice, and temperature changes.

Front

What causes a canyon to form?

Back

Canyons are typically formed by the erosion of rock by rivers over long periods of time.

Front

How do rocks become smooth in a stream?

Back

Rocks become smooth by erosion as they tumble and collide with each other and the stream bed.

Front

What is a landslide?

Back

A landslide is the sudden and fast movement of a large amount of earth material down a slope.

Front

What is a sand dune?

Back

A sand dune is a hill of sand formed by the wind, often found in deserts or near beaches.

Front

What is the role of water in erosion?

Back

Water can erode land by carrying away soil and rock particles as it flows over the surface.

Front

What is a flash flood?

Back

A flash flood is a sudden and intense flood that occurs within six hours of heavy rainfall.