Layers of the Earth

The thinnest layer of the Earth is the ___________.

• mantle

• crust

• core

Tectonic plates are made up of continental crust and ________ crust.

• continental
• oceanic
• plates
• mantle

What is the core made of?

• steel

• iron

• aluminum

• iron and nickel

What describes the outer core?

• solid

• liquid

• viscous

• gas

Which layer(s) of the Earth make up the asthenosphere?

• Part of the mantle

• Crust, mantle, Core

• Crust and upper mantle

• Only the crust

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

What layer is a semisolid and acts like a plastic?

• Lithosphere

• Mantle

• Asthenosphere

• crust

The oceanic floor is made of?

• Granite

• Basalt

• Cookies

• Water

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

• Pressure Decreases

• Pressure Increases

• Nothing

Which layer of Earth has the GREATEST density?

• crust

• mantle

• outer core

• inner core