Earth's Layers

Which layer is a liquid?

• Core
• Mantle
• Outer Core
• Inner Core

Which of the following happens because of convection currents moving in the mantle?

• The crust moves.
• The mantle increases in size.
• Pressure in the crust increases.
• Pressure in the crust decreases.

Which layer is made up of the metals iron and nickel?

• Crust
• Mantle
• Inner Core
• Lithosphere

What layer of Earth do we live on and have access to?

• Crust
• Core
• Mantle

True or False: The Earth's crust is thicker than the inner layers.

• True 
• False

What is the third layer from the top called?

• Crust
• Mantle
• Outer Core
• Inner Core

4. What layer is the hottest?

• Inner Core
• Crust
• Mantle
• Outer Core

5. Which layer is the thickest?

• Crust
• Mantle
• Inner Core
• Outer Core

From the lowest/coolest to the highest/hottest temperature, choose the correct order of the Earth's Layers.

• inner core, outer core, mantle, crust
• crust, mantle, outer core, inner core
• mantle, crust, outer core, inner core
• crust, mantle, inner core, outer core

Which layer consists of about 71% water and 29% land?

• Crust
• Inner core
• Mantle
• Outer core