1. The Earth’s Interior
Crust (Lithosphere)
Mantle
Outer Core
Inner Core

2. Inner Core
The deepest part of the earth (1512 miles deep) is a solid that contains both iron and nickel.
It is because of this that the center of the earth is a magnet, a compass.
It generates a magnetic field that protects the earth from flying out of orbit.

3. Outer Core
Outside of the inner core lays the outer core (1419 miles deep).
liquid nickel and iron
also contains sulphur and oxygen (which lowers the melting point).

4. Mantle
Occupying 1789 miles of the earth is the magma (iron and magnesium) that makes up the mantle.
Upper and lower
It is extremely hot!!
goopy; very plastic- like. (upper mantle)
Mostly solid (lower mantle)

5. Crust Also called lithosphere
This is the top layer of the earth, which is basically hardened mantle (magma).
It contains two segments, the oceanic and continental crusts.
Note: this is the same crust, it just depends how thick it is to determine if it is part of the Oceanic or Continental Crust.

6. Crust…cont’d
For instance, if you drained all of the water from earth, then there would be one, giant Continental Crust.
Likewise, if you flooded everything, you'd have one, giant Oceanic Crust.

7. Read About Earth’s interior
Our Text p. 4-6

8. The Earth’s Interior – Layer Names
Outer Core
Lithosphere
or crust
Mantle - Lower
Mantle - Upper
Inner Core

9. The Earth’s Interior - Composition
Liquid - magma
Solid – hardened mantle
Mostly Solid
Goopy, plastic-like
Solid – iron & nickel