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Layers of the Earth
vocab
| Term | Definition |
|---|---|
| seismic waves | Vibrations that travel through Earth carrying the energy released during a earthquake. |
| Pressure | The force exerted on a surface divided by the total area over which the for is exerted. |
| Crust | The layer of rock that forms Earths outer surface. |
| Basalt | A dark,tense,igneous rock with fine texture, found in oceanic crust. |
| Granite | A light colored igneous rock that is found in continental crust. |
| Mantle | The layer of hot,solid material between earths crust and core. |
| Lithosphere | A rigid layer made up of the uppermost part of the mantle and crust. |
| Asthenosphere | The soft layer of the mantle on which the lithosphere floats. |
| outer core | A layer of molten iron and nickel that surrounds the inner core of the earth. |
| inner core | A dense sphere of solid iron and nickel the center of the earth. |