Earth's Layers

What layer is the hottest?

• Core
• Crust
• Mantle

Which layer is the thickest?

• Core
• Crust
• Mantle

True or False: 
The Earth's thin shell of hard rock is called the crust.

• True
• False

If you traveled from the center of Earth to the surface, the pressure would...

• increase
• decrease
• stay the same
• unsure

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 

Which sublayer is made up of the crust and upper mantle?

• Inner Core
• Outer Core
• Lithosphere
• Asthenosphere

If we compare the temperature and pressure of the Earth’s mantle to the core, what differences can we expect as we move downward into the Earth?

• Both the temperature and pressure increase.
• Both the temperature and pressure decrease.
• The temperature increases and the pressure decrease.
• The temperature decreases and the pressure increases.

What is the outer core composed of?

• Basalt
• Granite
• Solid Metals
• Molten (liquid) Metals

Scientists determine what Earth’s interior looks like by using:

• Volcanoes
• Seismic Waves
• Continental Drift
• Convection Currents