Here is another experiment with fire that should only be performed under the supervision of adults. There are three things that fire needs to ignite: oxygen, heat and fuel. It means that the fire can be extinguished if we take one of these elements away. Today Max and I are checking this by taking oxygen away from our candles in different volumes. But I have a question for you. When you are blowing a candle, what element are you taking away from the fire to make the candle to go out? #TheDadLab