The Earth's Structure and Tectonic Plates

How many layers is the Earth made up of?

• 2
• 3
• 5
• 7

Which physical layer is the thinnest?

• crust
• mantle
• core

Which layer of the core is solid?

• inner
• outer

Which layer is made up of iron and nickel?

• Crust
• Mantle
• Inner Core
• Lithosphere

What are the two types of crust?

• top crust,bottom crust
• oceanic crust, continental crust
• water,land
• none of the above 

What is the correct layers of the earth starting with the surface?

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

Which is the hottest layer and has the most pressure on it?

• Crust
• Mantle
• Outer Core
• Inner core

What layer is depicted in yellow?

• Crust
• Core
• Mantle
• Lithosphere

Why have geologists not reached the mantle?

• It is too hot for humans to go there.
• It is too smelly for humans to go there.
• It doesn't have Wi-Fi so none of their instruments work.
• Scientists have not figured out how to time travel.

If you traveled from the crust to the core, the pressure would...

• increase
• decrease
• stay the same
• unsure