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Layers of the Earth
Earth's Physical Layers and Chemical Composition
| Term | Definition |
|---|---|
| crust | surface layer of earth, composed of silicon, oxygen, and aluminum |
| mantle | layer below the crust, made of silicon, oxygen, and magnesium |
| core | center of the Earth, made mostly of metal iron |
| lithosphere | physical layer that is divided into tectonic plates |
| asthenosphere | plastic-like layer where Earth's plates move |
| mesosphere | lower layer of the mantle |
| outer core | made of liquid iron and nickel |
| inner core | made of solid iron and nickel |
Created by:
Ms. Bennett