Which layer of Earth is made up of tectonic plates?

• outer core
• inner core
• asthenosphere
• lithosphere

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 thickest layer of the Earth?

• the crust
• the mantle
• the outer core
• the inner core

What is the core made of?

• steel
• iron 
• aluminum
• iron and nickel

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 has the tectonic plates floating on it?

• Lithosphere
• Mantle
• Asthenosphere
• crust

What describes the outer core?

• solid
• liquid
• viscous
• gas

This layer of Earth is solid Iron and Nickel

• Outer Core
• Mantle
• Inner Core
• Crust