This term we are starting a new inquiry topic all about WATER!
This afternoon we did an experiment with some balloons and water. We blew up a balloon and held it above a candle, after a while it popped, next we blew up a balloon but this time we added some water inside it and what happened next was very interesting...it didn't pop.
Here's how it works:
Water is a great substance for soaking up heat. The thin latex balloon
allows the heat to pass through very quickly and warm the water. As the water closest to the flame heats up, it begins to rise and cooler
water replaces it at the bottom of the balloon. This cooler water then
soaks up more heat and the process repeats itself. In fact, the exchange
of water happens so often that it keeps the balloon from popping.The black mark at the bottom is actually carbon which was deposited on the balloon by the flame.
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