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Layers of the Earth
CRUST
Thin solid layer
Between 5 and 70 km deep
Continental crust- "dry land"-granitic(light/coarse)
Oceanic crust-"ocean floor"-basaltic(dark/fine)
Thickest under mountains
Thinnest beneath oceans
MANTLE
Lithosphere
Brittle layer made of crust and uppermost
thin layer of the upper mantle
Asthenosphere
Most of upper mantle
Found just below the
lithosphere
Hotter than lithosphere
Soft but solid
"Plastic"
Lower Mantle
Solid
Not as flexible as upper mantle
CORE:
Outer Core
"Liquid" metal
Molten Iron & Nickel
Inner Core
Solid due to high pressure
Densest layer
Iron & Nickel
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