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Layers of the Earth

Layers of the Earth Vocabulary

TermDefinition
Seismic waves Vibrations that travel through Earth carrying the energy released during an earthquake.
Pressure The force exerted on a surface divided by the total area over which the force is exerted.
Crust The layer of rock that forms Earth’s outer surface.
Basalt A dark, dense, igneous rock with a fine texture, found in oceanic crust.
Granite A usually light colored igneous rock that is found in continental crust.
Mantle Mantle The layer of hot, solid material between Earth’s crust and core.
Lithosphere A rigid layer made up of the uppermost part of the mantle and the 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.
Created by: 097424
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