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Mathematics 8 Online
OpenStudy (anonymous):

1. Igneous Rock: *How is igneous rock formed? *What is the specific name for the rock formed when lava cools and hardens at the earth’s surface? *What is the specific name for the rock formed when magma cools and hardens below the earth’s surface? *How does crystal size compare in extrusive vs. intrusive rock? Explain the cause of this difference. *Give one example of extrusive igneous rock and one example of intrusive igneous rock shown in the video. @MARC_

OpenStudy (anonymous):

@MARC_ @Abhisar

OpenStudy (anonymous):

@MARC_

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