Earth Layers and Tectonic Plates

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• 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

This layer of Earth is the thickest part

• crust
• outer core
• mantle
• inner core

What are the two types of crust

• continental and oceanic
• ocean and upper
• lower and upper
• pizza and subway

Which layer of the earth has the lowest temperature?

• Crust
• Mantle
• Outer Core
• Inner Core

Which layer of the earth is under the highest pressure?

• Crust
• Mantle
• Outer Core
• Inner Core

The liquid portion of the mantle is the ______________. 

• Asthenosphere
• Lithosphere
• Upper Mantle
• Lower Mantle

Which of the following is NOT evidence to support the theory of plate tectonics?

• Fossils
• Mountains
• Glaciers
• Sand Erosion

The theory that says Earth's continents once made up an ancient supercontinent, and have been drifting apart ever since, is called the theory of...

• Pangea
• Plate Tectonics
• Natural Selection
• Gravity