structure of thr earth

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Last updated 5:04 PM on 9/3/26
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14 Terms

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Crust

thinnest layer of the earth

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The mantle

Largest layer of the earth

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Outer core

Liquid layer made of iron and nickel

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Inner core

Solid sphere due to pressure

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Continental crust

(Lighter) made of granite

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Oceanic crust

(heavier) made of basalt

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Moho line

Boundary between crust and mantle

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Lithosphere

Brittle part of the crust

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Asthenosphere

Ductile part under the lithosphere

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Convection currents

Movement of liquid in the mantle

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Continental drift

Movement of continents on the surface

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Subsuction

One tectonic plate moves beneath another

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Tectonic plates

Large peices of the earths crust

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Plate boundaries

Where two tectonic plates meet