Science - Ch. 4 - Erosion and Deposition

Front

What is erosion?

Back

Erosion is the process by which natural forces move weathered rock and soil from one place to another.

Front

What is deposition?

Back

Deposition is the process that lays down sediment in a new location after it has been transported by erosion.

Front

What evidence indicates an area was once covered by a glacier?

Back

A u-shaped valley is evidence that an area was once covered by a glacier.

Front

What is mass movement?

Back

Mass movement refers to the movement of soil and rock down a slope due to gravity, including landslides, mudflows, slump, and creep.

Front

How does wind strength affect particle erosion?

Back

The stronger the wind, the larger the particles it can erode.

Front

What is a landslide?

Back

A landslide is a type of mass movement where a large amount of earth material moves down a slope rapidly.

Front

What are loess deposits?

Back

Loess deposits are fine, wind-blown silt that can accumulate in layers, often found in areas with little vegetation.

Front

What is a v-shaped valley?

Back

A v-shaped valley is formed by the erosive action of a river, characterized by steep sides and a narrow bottom.

Front

What is abrasion in the context of erosion?

Back

Abrasion is the process of wearing down rocks and soil through friction and impact during erosion.

Front

What role does gravity play in erosion and deposition?

Back

Gravity is a key force that drives mass movement, causing materials to move downhill and contributing to erosion.