Layers of 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

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

• Pressure Decreases
• Pressure Increases
• Nothing

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

• Decreases
• Increases

The core is made-up of what two elements?

• iron and nickel
• iron and oxygen
• nickel and silicon
• oxygen and silicon

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 crust is thicker

• ocean
• continental
• bread
• pizza

Identify layer  #20.

• mantle
• asthenosphere
• inner core
• outer core

What observation can we make about Earth’s lithosphere AND asthenosphere?

• The asthenosphere floats on top of the lithosphere.
• The crust and the core make up the lithosphere.
• The crust and mantle make up the asthenosphere. 
• The lithosphere floats on top of the asthenosphere