Inside the earth
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Inside the Earth - More details about Earth layers.

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The crust l.jpg

Outer layer

5-100 km thick

2 types of crust

Oceanic (very dense, made of basalt)

Continental (less dense, made of granite)

The Crust



The mantle l.jpg

Middle layer

Very thick layer

The Mantle


The core l.jpg
The Core

  • Made mostly of iron

  • 1/3 of the earth’s mass

  • Very hot


Earth s layers l.jpg

How are the earth’s layers similar to an egg?

Shell=crust

Egg white=mantle

Yolk=core

Earth’s Layers


Physical structure of the earth 5 layers l.jpg
Physical Structure of the Earth(5 Layers)

  • Lithosphere - rigid outer layer (crust)

  • Asthenosphere - solid rock that flows slowly (like hot asphalt)

  • Mesosphere - middle layer

  • Outer Core - liquid layer

  • Inner Core - solid, very dense


Tectonic plates l.jpg
Tectonic Plates

  • Earth’s crust is broken into about 19 pieces

  • These plates move on top of the asthenosphere



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