sci245_r6_Comparison_Worksheet

sci245_r6_Comparison_Worksheet - Comparison Worksheet...

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Comparison Worksheet SCI/245 Version 6 1 Associate Level Material Comparison Worksheet Use the following table to compare extrusive and intrusive rocks. Describe and compare each type in at least 150 words. Extrusive Rock Intrusive Rock Extrusive rock or igneous (produced inconditions of extreme intense heat) whichform by the crystallization of magma at thesurface of the Earth. These particular rockshave a fine grain texture because of thecooling process near the surface of theEarth which is very fast. So the major difference between the two types of rock isthe manner in which they are formed. Intrusive rock or igneous (produced inconditions of extreme intense heat) formed by the crystallization of magma deep intothe Earth. Intrusive rocks have the look of a rock with large crystals, all over it i.e., theappearance of a large spiked rock mass.The cooling of magma deep in the Earth istypically much slower than the cooling process at the surface, so larger crystals cangrow. Rocks with visible
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sci245_r6_Comparison_Worksheet - Comparison Worksheet...

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