Earth's History and Layers

Which layer is the HOTTEST?

• Crust

• Mantle

• Outer Core

• Inner Core

Which type of CRUST is more dense?

• Oceanic Crust

• Continental Crust

Which type of crust is thicker?

• Oceanic crust

• Continental crust

Which layers are composed of Nickel (Ni) and Iron (Fe)?

• Crust

• Mantle

• Outer Core

• Inner Core

Which layer of the earth is completely liquid?

• Crust

• Mantle

• Outer Core

• Inner Core

The asthenosphere sits directly below which layer?

• Crust

• Lithosphere

• Mantle

• Outer Core

Which STATE is the inner core?

• Solid

• Semi-molten

• Liquid

• Gas

Which state is the UPPER part of the Mantle?

• Solid

• Semi-molten

• Liquid

• Gas

As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?

• The would all increase
• The would all decrease.
• Nothing, the layers are made of the same material throughout
• Temperature would decrease, but pressure and density would increase

The thinnest layer of the Earth is the ___________.

• mantle
• crust
• core