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Earths' Layers
Earths' Interior
5
Science
6th Grade
02/11/2014
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Term
crust
 Definition
the outer most surface of the Earth. Made of soil and thick rock
Term
continental crust
 Definition
20-70 km thick layer made of granite
Term
oceanic crust
 Definition
thin layer of crust 5-10km mostly basalt
Term
Mantle
 Definition
1800 miles thick includes lithosphere/asthenosphere largest layer
Term
lithosphere
 Definition
made up of lower crust and upper mantle
most earthquakes start here
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