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Earth Layers: Physical Properties

Earth Layers: Physical Properties. Lithosphere. The outermost, rigid layer Is divided into pieces called tectonic plates Made of 2 parts 1) crust 2) rigid upper part of mantle 15-300 km. Asthenosphere. The plastic layer of mantle on which pieces of lithosphere move. 250 km

nicole-david
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Earth Layers: Physical Properties

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  1. Earth Layers: Physical Properties

  2. Lithosphere • The outermost, rigid layer • Is divided into pieces called tectonic plates • Made of 2 parts 1) crust 2) rigid upper part of mantle • 15-300 km

  3. Asthenosphere • The plastic layer of mantle on which pieces of lithosphere move. • 250 km • Made of solid rock • Moves very slowly

  4. Mesosphere • Strong lower part of mantle • Extends from bottom of asthenosphere to the core • 2,550 km • It is ‘viscous’ or gummy (thick sticky substance between a solid & liquid)

  5. Outer Core • The Liquid layer of core • Lies beneath the mantle and surrounds the inner core • 2,200 km

  6. Inner Core • The solid layer of core • Denser than outer core • 1,230km

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