Erosion and Weathering Quiz

The water in a river is flowing incredibly fast. The rocks in the river are bumping and scraping against each other. What will happen to these rocks as time passes?

• They will get larger

• They will get smaller

• They will get sharper

• They will get heavier

Mrs. Brunson is doing a lab with her class to make rocks smooth like the rocks beside a river bank. Which lab shows how a river can make rocks smooth over time?

• Put rocks in the sunlight.

• Bury the rocks underground.

• Put weights on top of the rocks.

• Shake the rocks in a container filled with water.

Which of the following is formed because of weathering?

• Canyon

• Desert

• Forest

• Mountain

What is an example of wind erosion?

• Tides

• Sand dunes

• Alluvial fan

• Moraine

What is an example of water erosion?

• Smooth stones

• Small rocks

• Canyons

• Barrier islands

Caves form under certain conditions. Choose the environment where a cave would most likely form.

• A cool prairie

• A wide desert

• A rainy hillside

• A windy mountainside

Which of the following events MOST LIKELY helps to gradually form an underground cave?

• A hurricane

• A flood

• An earthquake

• An avalanche

Running water often forms cave openings. What inference can we make about a rock that has been worn down by water?

• It is very hard

• It is water soluble

• It is not easily eroded

• It is mostly made of sand

Which of these is an example of erosion?

• Light shining onto a mountain.
• Rain breaking down rocks on a mountain into smaller pieces. 
• Wind blowing away sediment to a new place on the mountain.
• All of the above.

What is the major force of erosion along the coast?

• Sand
• Earthquakes
• Waves
• Rain