Front

What is the part of the Earth System that includes the gases surrounding the Earth?

Back

Atmosphere

Front

What is the layer of gases that surrounds our planet?

Back

Atmosphere

Front

What is the reason Earth is separated into layers?

Back

Density

Front

Which layer of the Earth is the thinnest?

Back

Crust

Front

Which letter identifies the area of Earth called the crust?

Back

A

Front

What is the layer beneath the Earth's crust?

Back

Mantle

Front

What is the innermost layer of the Earth?

Back

Inner Core

Front

What is the outer layer of the Earth called?

Back

Crust

Front

What is the layer of the Earth that is liquid and surrounds the inner core?

Back

Outer Core

Front

What is the term for the solid part of the Earth, including the crust and upper mantle?

Back

Geosphere