Unit 6 Review Layers of the Earth

The thinnest layer of the Earth is?

• Mantle
• Lithosphere
• Athenosphere
• Crust

The lithosphere combines what two layers?

• Athenosphere & Crust
• Crust & Upper Mantel
• Mantel & Athenosphere

The asthenosphere makes up the?

• Upper portion of the mantel
• The lower portion of the crust
• Just the Athenosphere

What happens to pressure as we move from the crust to the inner core?

• Pressure Decreases
• Pressure Increases
• Nothing

This layer of Earth is solid Iron and Nickel

• Outer Core
• Mantle
• Inner Core
• Crust

What is the name of the layer that contains the uppermost mantle and crust

• Asthenosphere
• Mesosphere
• Lithosphere
• Transosphere

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

Identify layer  #20.

• mantle
• asthenosphere
• inner core
• outer core

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

• Volcanoes
• Seismic Waves
• Continental Drift
• Convection Currents