1. Earth’s Inner Structure

2. What are the four layers of the Earth?
Crust/ Lithosphere
Mantle
Outer Core
Inner Core

3. Crust Surface of the Earth Part of the Lithosphere
Temperature ranges from air temp to 1600 F
Two types of plates
Continental - granite
Oceanic - basalt

4. Tectonic Plates

5. Mantle Largest layer, 1800 miles thick
Temperature ranges from 1600 to 4000 F
Temperature change causes the magma to convect/move

6. Outer Core 1400 miles thick Made of liquid iron and nickel
Temperatures ranges from 4000 to 9000 F

7. Inner Core 800 miles thick Temperature is 9000 F
Solid ball of Iron and Nickel
Under extreme pressure to keep ball solid
Magnetized