Earth's Interior

What are the three main layers of the Earth?

• surface, middle, and center

• atmosphere, lithosphere, and hydrosphere

• crust, mantle, and core

• upper, middle, and lower

Which layer of the Earth is the thickest?

• Inner core

• Outer core

• Mantle

• Crust

What is the outermost layer of the Earth called?

• mantle

• crust

• core

• atmosphere

What is the innermost layer of the Earth called?

• Inner core

• Outer core

• Middle core

• Surface core

What is the temperature like in the Earth's inner core?

• 10,000 to 12,000 degrees Celsius

• 100 to 200 degrees Celsius

• 5,000 to 7,000 degrees Celsius

• 500 to 700 degrees Celsius