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Layers of the Earth

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by

Danielle Balistrieri

on 21 November 2013

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Transcript of Layers of the Earth

Layers of the Earth
Based on Composition
Crust
Mantle
The layer of Earth between the crust & core
Has convection currents- video clip
2,900 km thick
We have never been to it!
Made of 3 main elements
Two kinds of crust
5-100km thick
Outermost layer of the Earth
Made of 3 main
elements
Core
Layer that goes from the mantle to
the center of the earth
3430 km thick
Made mostly of 2 elements
Dividing up the layers even further...
Inner core
Outer core
Mesosphere
Asthenosphere
Lithosphere
Inner core
Solid
Outer Core
Liquid
2200 km thick
1230 km thick
Mesosphere
Strong, lower part of the mantle between
the
asthenosphere
& the outer core
2550km
thick
Asthenosphere
**PLASTIC**
Soft layer of the mantle on which tectonic plates move
250 km thick
Lithosphere
Outermost, rigid
layer of Earth

2 parts:
- lower part
of crust
- upper part
of mantle

Divided into tectonic plates
15-30km thick
Full transcript