Balloon and Candle – Grade 4 and 5

Grades 4 & 5 enjoyed another energy experiment, this time learning about thermal energy. They discovered that when putting a balloon over a lit candle, the balloon would pop within seconds. However, if you fill the balloon with water first, it will take minutes to pop because the thermal energy is transferred through the balloon to the water. Once the water can not take any more of the thermal energy from the candle, the balloon pops.