Lewis Landforms lessons 5-8

Front

What is deposition?

Back

Deposition is the process where sediment is dropped or settled in a new location, such as sand being dropped on a beach by waves.

Front

What is erosion?

Back

Erosion is the movement of weathered material (sediment) from one place to another by natural forces like wind, water, gravity, or ice.

Front

What is weathering?

Back

Weathering is the breakdown of rocks and minerals into smaller pieces, which can be caused by physical or chemical processes.

Front

What is physical weathering?

Back

Physical weathering is the process of breaking down rocks into smaller pieces without changing their chemical composition, such as when water freezes and expands in cracks.

Front

What is chemical weathering?

Back

Chemical weathering involves the chemical alteration of minerals in rocks, often due to reactions with water or other chemicals.

Front

What is an example of erosion?

Back

An example of erosion is wind blowing away sediment from a surface.

Front

What is an example of deposition?

Back

An example of deposition is sand that is dropped on the beach by waves.

Front

What causes physical weathering?

Back

Physical weathering can be caused by temperature changes, freezing and thawing, and the action of plants and animals.

Front

What is the role of gravity in erosion?

Back

Gravity causes materials like pebbles and soil to move downhill, contributing to erosion.

Front

What is sediment?

Back

Sediment is small pieces of rock, minerals, and organic material that are transported by wind, water, or ice.