We could differentiate between different types of crystal by the way they rotated plane or polarized light. It is interesting to see how cotton and wool have different degrees of color and uniformity (cotton versus silk versus wool). Could see a variety of shapes in crystals that didn't take a long time to grow and using the copper wire and silver nitrate would be good to show students how fast a crystal can grow. The thermometer lab gave a simple picture of temperature fluctuation (elementary) and gave high school students a variety of thermometers to construct with different efficiencies. The calorimeter lab showed the simple basics of converting food energy to heat energy.
Dawn and Barb
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