Rock Layers (ESS.4)

What is a fossil?

• A large round object

• An imprint of something that lived a long time ago

• Every rock is a fossil

What can the rock layers tell us about life on Earth?

• They can tell us what animals ate in the past.

• They can tell us about the weather patterns.

• They can tell us when organisms went extinct and when new ones showed up.

Rock that forms when sediment from erosion is compressed together is called?

• Deposited

• Sedimentary rock

• Intrusion

• Erosion

What are some organisms that have lived in the past that are now extinct? (Choose all that apply)

• Woolly mammoths

• Pterodactyls

• Giraffes

• Raptors

• Llamas

What can scientists find out using rocks and rock layers?

• They can figure out future weather patterns.

• They can figure out what the rocks are made of and different things that used to live there.

• They can find out the temperature outside right now.

When rocks are broken down into smaller pieces, it is called?

• Weathering

• Intrusion

• Relative dating

• Fossil

The exact age of something is called?

• Relative dating

• Deposited

• Absolute dating

• Erosion

Name some of Earth's processes that can change what the landscape looks like. (Choose all that apply)

• Erosion

• Rain

• Earthquakes

• Volcanoes

• Thunderstorms

When molten rock from inside the Earth moves through cracks in the rock layers, it is called?

• Weathering

• Plate tectonics

• Sedimentary rocks

• Intrusion

How old is Earth?

• About 578 years old

• About 4.6 billion years old

• About 3.9 million years old

• No one knows