21-12-2015
Mathematics

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What is the difference between extrusive and intrusive igneous rock?

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21-12-2015

Extrusive igneous rock
-Cools fast
-Created by lava
-Very small crystals can be found inside this rock

Intrusive igneous rock
-Cools very, very slowly
-Created by magma
-Contain very large crystals

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21-12-2015

extrusive rocks form out of a volcano and intrusive forms inside a volcano

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