Layers of the Earth

Front

1st Compositional layer made of Oxygen, Silicon, & Aluminium with traces of Magnesium and Iron.

Back

Crust

Front

1st Physical layer of solid, cold, low density, rock that is broken into 15 plates.

Back

Lithosphere

Front

2nd Compositional layer made of Iron and Magnesium with traces of Silicon, Oxygen, and Aluminium

Back

Mantle

Front

2nd Physical layer made of semi-solid, medium density rock that flows slowly like hot asphalt.

Back

Asthenosphere

Front

3rd Physical layer made of really solid high density rock that does not flow.

Back

Mesosphere

Front

3rd Compositional layer made of Iron and Nickel.

Back

Core

Front

4th Physical layer made of molten Iron and Nickel.

Back

Outer Core

Front

5th Physical layer made of solid, very dense, crystalline Iron and Nickel.

Back

Inner Core