MultiHub Forum

I'm a high school science teacher setting up a crystal growth experiment for my chemistry class to demonstrate supersaturated solutions and nucleation, but I'm looking for a reliable procedure that yields visually impressive results within a two-week timeframe. I've tried alum and copper sulfate in the past with mixed success, often getting small or malformed crystals. For educators or hobbyists, what specific salts, solution concentrations, and temperature control methods have you found most effective for producing large, well-defined crystals, and how do you best manage evaporation rates and prevent contamination during the growth period?