GEOGRAPHY Dyamic Planet

INSIDE THE EARTH

 Inner Core

• 5100km down from ground level to the very center of Earth
• a solid, over 5000 degrees
• we know its solid through tracking Earthquakes

Outer Core

• 2,900km down from ground level and ends where the Inner Core starts
• 9.9-12.2 grams in density
• made of molten IRON AND NICKEL 
• between 4000 and 5000 degrees in temperature

Lower Mantle

• biggest section within Earth 
• from 700km down to 2900 (where it meets the Outer Core)
• nearest to Outer Core is called Lower Mantle
• Lower Mantle is solid rock called Peridot, 5gram density

Asthenosphere

• highest part of the Mantle
• partially molten rock, partially Peridot
• between 900 and 1600 degrees

Lithosphere

• upper part of the Earth, from top of Mantle to highest mountain
• a part of the Earths crust
• contains the CONTINENTAL CRUST and OCEANIC CRUST

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