Unit 4 Earth's Resources

Which one is a living thing found on Earth's surface?

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Greg claims that his rocks have different textures.

How can he find evidence for the claim?

• He can observe if the rocks are smooth or rough.

• He can find out where the rocks come from.

• He can predict what the rocks will feel like.

What is soil?

• a hard, nonliving thing that comes from the ground

• anything from nature that people can use

• the top layer of Earth

What happens if plants, animals, and people do not have water?

• They eat more.

• They get bigger.

• They stop living.

Look at the picture. Which water safety rule is the child breaking?

• Learn to swim.

• Never swim alone.

• Wear a life jacket while boating.

What should you do in a water emergency?

• Call 911.

• Swim alone.

• Take off your life jacket.

Look at the damage done to this building from an earthquake. What caused these changes?

• a slow change to Earth's surface over a long time

• a fast change to Earth's surface

• weathering of rocks on Earth's surface

Which one would not cause a rock to break apart by weathering?

• tree roots

• ice

• glue

Volcanoes can cause changes to the surface of Earth. Look at the picture. How will this event affect trees and other plants?

• It will burn them.

• It will make them grow.

• It will water them.

Erosion can cause changes to Earth's surface. Which of the following is a slow change that took a long time to form?

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