Monday, October 5, 2009

Earth Science Trying to Grow Crystals

My Earth Science students have been learning all about minerals: how to classify them, learning about their properties, how they form, and how they are used in society. The closest we can get to making minerals is growing rock candy. As I began this lab with students I realized that they needed to have a better understanding of the states of matter (solids, liquids, and gases), and they needed to be able to distinguish between dissolving and melting. So after we made a super saturated sugar solution, added some food coloring, and left the solution in a jar to sit for a week, we conducted a couple of labs on understanding the states of matter.

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