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Inside the Earth.

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Presentation on theme: "Inside the Earth."— Presentation transcript:

1 Inside the Earth

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

3 The Crust Outer layer 5-100 km thick 2 types of crust
Oceanic (very dense, made of basalt) 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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