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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. |