Which section of Earth is composed primarily of liquid metal?

• crust

• mantle

• outer core

• inner core

A student uses clay to construct a model of Earth. Which layer of the model should be the thinnest layer?

• the layer representing the mantle

• the layer representing the outer core

• the layer representing the inner core

• the layer representing the crust

What layer of the Earth do we live on?

• mantle

• inner core

• crust

• outer core

What layer makes up 85% of the total weight of the Earth?

• crust

• mantle

• outer core

• inner core

What layer of the Earth is labeled A?

• inner core

• outer core

• mantle

• crust

Which layer of the earth is the hottest?

• crust

• mantle

• outer core

• inner core

What is the correct order (starting from the surface) of Earth's layers?

• crust, outer core, inner core, mantle

• mantle, outer core, inner core, crust

• crust, mantle, outer core, inner core

• outer core, inner core, crust, mantle

There are how many different types of crust?

• 1
• 2
• 5
• 3

What happens to temperature as we move from the crust to the inner core?

• Decreases
• Increases
• Nothing

Less dense materials rise to the top.

• True
• False