Soil
Weathering
Erosion
Plants
Miscellaneous

100

The bottom layer of soil.
What is bedrock?

100

This is the type of weathering that occurs when water gets behind rocks when it is cold and cracks the rock.
What is freezing or ice?

100

This can help stop erosion.
What is a fence, retaining wall or plants?

100

Plants can help to stop this.
What is erosion?

100

This type of soil feels gritty.
What is sand?

200

This is what makes the topsoil dark.
What are decomposing things?

200

Soil is formed after this takes place for a long period of time.
What is weathering?

200

Name one way erosion occurs.
What is...answers will vary.

200

If a plant is dying in soil what might it be lacking?
What are nutrients?

200

This type of soil feels "silky."
What is silt?

300

The middle portion of soil.
What is subsoil?

300

The Grand Canyon and other canyons were formed from this type of weathering over a long period of time.
What is water movement weathering?

300

Name an example of erosion.
What is...answers will vary.

300

Plants and trees are good for our environment, name one reason why.
They control erosion, they create oxygen and make our world nice.

300

This soil type clumps up and holds water really well.
What is clay?

400

The uppermost portion of soil that contains decomposing organisms.
What is topsoil?

400

Name one way that water can cause weathering.
What is... answers will vary.

400

Does erosion occur quickly or slowly?
What is slowly?

400

Can plants grow without soil?
Yes

400

This type of soil dries quickest because it doesn't hold water well.
What is sand?

500

The layer of soil containing mostly clay and roots.
What is subsoil?

500

Name one way that chemical weathering occurs.
What is...answers will vary.

500

Define erosion.
What is the movement of weathered materials?

500

What forms soil?
What is weathering of a rock?