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I was trying very hard to remember what the other two "classic fun-for-kids crystal growing" chemicals were and it was eating me alive. Thank you for the answe
by jrumbut 5y ago
I was trying very hard to remember what the other two "classic fun-for-kids crystal growing" chemicals were and it was eating me alive.
Thank you for the answer, I still remember my alum crystals for the grade school science fair.
- Jiro 5y agoI tried Epsom salts as a kid, since there was some around the house. They were a lot easier to grow than table salt.
- Turing_Machine 5y agoEpsom salts! Yes! Another good one.
- mountain_peak 5y agoAlum crystals in a disposable pie pan on a hot water radiator turned out brilliantly in my youth. Fast-forward many years, and my daughter wasn't having much luck with salt, sugar, or even copper sulfate (that one looked like a melted smurf). I remembered my alum crystals, which she tried, and lo and behold...nothing! Desperate (on the night before the assignment was due), I remembered someone mentioning that you can make crystals with mothball flakes. We picked a bag of flakes up and heated them up in a dish, and were able to make long, beautiful crystals on the bottom of a cold glass over the heated solution. The only problem was that as soon as we moved the glass away from the solution, the crystals evaporated, so she took a picture of the crystals as they were forming and received full marks. A happy ending, but the house smelled of mothballs for a few days!