Layers of the Earth

Layer of the Earth:

*Crust 
-thin,solid,outermost covering of the Earth.
- makes up 1% of Earth's Volume.
> 2 kinds of Crust
~Oceanic Crust 
-beneath the oceans.
- 5-10 km thick
~Continental Crust
- beneath the continents
-70 cm thick
-thickest beneath mountains


*Mantle
-located below the rust
-2,870 km thick
- 80% of the Earth's Volume
- 2/3's of the Earth's mass.
'' uppermost part of the mantle is solid.''
''solid portion makes up lithosphere.''
~Lithosphere
-65-100 km thick
''below the lithosphere is the asthenosphere''
~Asthenosphere
-region of the mantle
- 200 km thick
~Plasticity
-the ability of the solid to flow.


*Core
- below the mantle
-center of the Earth
~Seismic waves 
- are the vibrations that travel through the Earth.
''Earthquakes & Explosions - produce seismic waves.''
''The outer portion of the core is a dense liquid about 2,680 km diameter.''
Innercore & Outercore - 19% nearly (1/3) mass of the Earth's volume.