Inside the Earth. Chemical Composition (What it is made of) Crust Mantle Core.
Journey to the Center of Earth Layers of the Earth Crust Mantle Outer Core Inner Core.
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Transcript of Journey to the Center of Earth Layers of the Earth Crust Mantle Outer Core Inner Core.
Journey to the Center of Earth
Layers of the Earth
• Crust
• Mantle
• Outer Core
• Inner Core
The Crust
• Layer that we live on (Lithosphere)
• 5-25 miles thick
• Consists of cooled rock
• Thinnest layer of the earth
• There are 2 kinds of Crust: Continental (thicker) and Oceanic (thinner)
Crust
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The Mantle• Semi-liquid
(magma)
• 3000 km wide
• softer closer to the surface (Asthenosphere)
• Has convection currents that move the continental plates
The Mantle
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The Outer Core
• Liquid, molten rock
• Very high temperatures
• Made of Nickel and Iron
The Inner Core
• Solid layer• Solid because of high pressure• Mostly Iron• 6,000 degree Celsius.• 2,100 km wide
The Core
QuickTime™ and aSorenson Video 3 decompressorare needed to see this picture.