Earth's Structure

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

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

Earth's inner core is

• a layer of hot rock
• a solid ball of iron and nickel
• a layer of liquid iron and nickel
• a layer of rock that forms Earth's outer skin
  

Which layer of the earth is a pure liquid?

• crust
• mantle
• outer core
• inner core

How does temperature change as you move from the crust to the core?

• it gets cooler
• it gets hotter
• it stays the same
• the core is frozen

What layer is shown by letter A?

• Crust
• Mantle
• Outer core
• Inner core

What layer is shown by letter B?

• Crust
• Mantle
• Outer core
• Inner core

What layer is shown by letter C?

• Crust
• Mantle
• Outer core
• Inner core

What layer is shown by letter D?

• Crust
• Mantle
• Outer core
• Inner core

What layer is the hottest?

• Core
• Crust
• Mantle

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

• True
• False