Earth Structures and Processes

Identify layer  #20.

• mantle
• asthenosphere
• inner core
• outer core

Which crust is thicker

• ocean
• continental
• bread
• pizza

In convection, WARM air

• Rises
• Sinks

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

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

Which layer of the earth has the lowest temperature?

• Crust
• Mantle
• Outer Core
• Inner Core

The core is made-up of what two elements?

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

Which layer is the OUTER CORE?

• 1
• 2
• 3
• 4

What is the correct order (starting from the surface) of Earth's layers?

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