Weathering and Erosion

Front

What are lichens?

Back

Lichens are a fungus living together with an algae or a bacteria.

Front

What type of weathering does freezing cause?

Back

Freezing causes physical weathering.

Front

True or False: Different soils may have different sizes of earth materials.

Back

True

Front

What is a rapid landform change in which a large chunk of earth falls from its original position?

Back

A landslide.

Front

What happens to a rock when it weathers?

Back

It breaks into small pieces.

Front

What is weathering?

Back

Weathering is the process of breaking down rocks into smaller pieces.

Front

What is erosion?

Back

Erosion is the movement of weathered materials from one location to another.

Front

What are the two main types of weathering?

Back

Physical weathering and chemical weathering.

Front

Give an example of physical weathering.

Back

An example of physical weathering is the freezing and thawing of water in rock cracks.

Front

What is chemical weathering?

Back

Chemical weathering involves the chemical alteration of minerals in rocks.