Create a discovery bottle with pipe cleaners and a plastic soda bottle then add a magnet wand for hours of fun.
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.
Simple science project to show kids why leaves change colors. Can't wait to try this with my kids!