Crystals on a String

Baking soda - 3 tsp, possibly more.
Water - 1/2 cup
Electric hot plate
String - 10 cm (5-6 in)
Small weight for string (e.g. fishing weight)
A clear glass or vial.

1. Put 1/2 cup water in pan.
2. Dissolve in as much baking soda as possible, stirring in 1 teaspoon at a time.
3. Heat the solution (do not boil).
4. Remove from heat source, stir, and add more baking soda until no more will dissolve and solution is saturated.
5. Cool solution.
6. Pour into a clear glass.
7. Tie the weight onto the end of the string and hang into solution.
8. After several days crystals will begin growing on the string as the water evaporates.

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