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layers of the earth
layers
9
Science
Professional
01/24/2011
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Term
inner core
 Definition

the solid inner most and hottest part of the earth.

 
Term
outer core
 Definition
the outer or upper zone of the earths core including the transition zone.
Term
mantle
 Definition
the largest layer layer of the earth composed of very hot, dense, flowing rock found below the crust and above the core.
Term
athenosphere
 Definition
plastic-like layer of the earth on which the lithospheric plates float and move around.
Term
lithosphere
 Definition
rigid layer of the earth about 100 km thick, made of crust and a part of the upper mantle.
Term
crust
 Definition
the outer layer of the earth, about 10 km thick under the oceans and up to 50 km thick under the continents.
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