Hot ice, scientifically known as sodium acetate, is a liquid that will turn solid at the slightest provocation. Touching it with your finger, bumping it too hard, or speaking a few angry words will cause it to spring from a clear, water-like state into solid ice-like crystals.
If you are a science teacher who wants to find cool things to show the students, these are some great ideas. If you crave more inspiration, there’s a website called Science Toys that’s a great resource for demonstrating scientific principles using everyday household products.
Snake venom meets blood A lightbulb burning out Belousov–Zhabotinsky reaction Aluminum and iodine Burning mercury II thiocyanate Catalytic decomposition of hydrogen peroxide Blood meets hydrogen peroxide Dehydration of sugar in [...]