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Science
Layers of the Earth
Term | Definition |
---|---|
crust | solid and brittle, composed of granite and basalt, oceanic and continental, oceanic is more dense |
mantle | largest layer, rocky and metallic, composed of iron magnesium and calcium |
outer core | hot, metals are liquid, thickness is 2250 km, 5000-6000 degrees Celsius, composed of nickel and iron |
inner core | metals are squeezed together so they can't move like a liquid and they are forced to vibrate like a solid |