A simple yet, intriguing experiment showing the formation of crystals within minutes. Using a supersaturated solution, we observe that introducing table salt crystals into the solution has no effect. However, once we add even one crystal of sodium acetate, we suddenly observe a fascinating rapid crystallization process throughout the entire Petri dish, or in a transparent plastic vial.
Includes: 2 test tubes containing a supersaturated solution of sodium acetate, 2 Petri dishes, a vial containing sodium chloride crystals, a vial containing several large sodium acetate crystals, Paper clip and Instruction Sheet
Ages 11-18 years.
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