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Quick Quiz

Any kind of rock can melt to form magma.

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Module of the day

Thermodynamics I

Without heat flow, nothing can move, no chemical reactions can take place, and no machines can run. This module introduces the…

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Term of the day

andesite

[noun] An extrusive igneous rock of intermediate composition, often gray in color. The main minerals present in andesite are plagioclase and hornblende.…

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