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Earth Layers
Term | Definition |
---|---|
Lithosphere | The solid lower layer of the crust. |
Asthenosphere | The uppermost layer of the mantle. |
Crust | the outer layer of the earth. |
Mantle | the layer of hot, solid material between Earth's crust and core |
Outer Core | a layer of molten iron and nickel that surrounds the inner core of Earth |
Inner Core | a dense sphere of solid iron and nickel at the center of Earth |
Convection Current | The circular movement of substances due to changes in density. |
Seismic Waves | Waves produced by earthquakes that help us study the inner layers of Earth. |
Continental Crust | The thickest type of crust. |
Oceanic Crust | The thinnest type of crust |
Crust | Rock, Solid, 5-4,000 mi |
Mantle | Iron, Liquid, 2,867 mi |
Outer Core | Nickle, Liquid, 1,800-3,200 mi |