Earth's Geosphere

The geosphere . . .

• is a mixture of gases surrounding Earth, held in place by gravity.
• is the system that includes the rocks, minerals and landforms that shape the Earth.
• includes all living things on Earth.

We live on a layer called the crust.

• true
• False

Plates cover the surface of the earth, except under the oceans.

• True
• False

The thinnest layer of Earth's geosphere is the inner core.

• True
• False

Both the outer core and the inner core are comprised mostly of nickel and iron.

• True
• False

The outer core is a liquid layer, and the inner core is solid.

• True
• False

The outer core is the thickest layer of Earth's geosphere.

• True
• False

This layer is the oldest, deepest layer.

• Crust
• Mantle
• Outer Core
• Inner Core

This layer is the hottest layer.

• Crust
• Mantle
• Outer Core
• Inner Core

This layer is the least hot.

• Crust
• Mantle
• Outer Core
• Inner Core