Our water property demo was about specific heat, and we blew up a balloon with water and held it over a lit candle to prove that the water will not allow the balloon to pop because the water absorbs the heat. Everything went exactly as planned, except one of our classmates got a balloon in her face. I learned that water is known as the "universal solvent". Water has a high level of surface tension. I learned the difference between hard water and soft water. I learned that salt and sugar are polar so they dissolve well in water. I also learned that water sticks to itself easily.