Weathering, erosion, deposition

Front

What is mechanical weathering?

Back

Mechanical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition. Examples include rocks falling off cliffs and breaking.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from one location and transported to another, often by wind, water, or ice.

Front

What is deposition?

Back

Deposition is the process where sediments, soil, and rocks are added to a landform or land mass, often occurring at the mouth of rivers.

Front

Give an example of mechanical weathering.

Back

An example of mechanical weathering is rocks falling off a cliff and breaking.

Front

True or False: A car driving over a pile of rocks is an example of mechanical weathering.

Back

True.

Front

What landform is created by the deposition of sediments at the mouth of a river?

Back

A delta.

Front

True or False: Rocks hitting against one another in a fast-moving river is an example of mechanical weathering.

Back

True.

Front

Which of the following landforms is NOT created by deposition?

Back

Mountains.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks, while erosion is the movement of those broken pieces from one place to another.

Front

What role does water play in weathering?

Back

Water can cause both mechanical and chemical weathering; it can freeze and expand in cracks, breaking rocks apart, or it can dissolve minerals in rocks.