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Inside the Earth. Composition (What it is made of) Crust Mantle Core.

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Presentation on theme: "Inside the Earth. Composition (What it is made of) Crust Mantle Core."— Presentation transcript:

1 Inside the Earth

2 Composition (What it is made of) Crust Mantle Core

3 The Crust Outer layer km thick 2 types of crust –O–Oceanic (very dense, made of basalt) –C–Continental (less dense, made of granite)

4 Oceanic and Continental Crust

5 The Mantle Middle layer Very thick layer

6 The Core Made mostly of iron 1/3 of the earth’s mass Very hot

7 Earth’s Layers How are the earth’s layers similar to an egg? Shell=crust Egg white=mantle Yolk=core

8 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

9 Tectonic Plates Earth’s crust is broken into about 19 pieces These plates move on top of the asthenosphere


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