Fireproof+Balloon-Khaja

Materials: Balloons Goggles Matches Candle Water  Procedure: 1. Blow up 2 balloons and put 60 mL of water in 1. 2. Light a candle and put it under the balloon without water. 3. Light the candle again and place it under the balloon with water in it. 4. Pop the balloon and clean up.  Explanation: In this experiment it was observed one balloon popped while the other was perfectly fine. What is going on? What happened was both balloons had air in them and one of them had water inside of it which kept the balloon from popping. The balloon with only air inside of it popped when it was heated. This was due to the flame heating up the rubber. There is also air inside the balloon which the atoms inside the balloon start to move around when they are being heated up. The flame is added underneath the balloon which heats up both the rubber and the air inside the balloon. The rubber becomes weaker and weaker due to the flame and it can not withstand the same amount of pressure as if it was cold. The atoms inside the balloon are moving around inside the balloon and move faster and faster. The rubber of the balloon has become weaker so it can not withstand the pressure so it finally pops. On the other hand the balloon with water inside of it did not pop. The balloon with water inside of it did not pop because the water inside the balloon absorbs all he heat. When the flame was placed underneath the balloon the rubber did not absorb any of the heat because the water inside of the balloon absorbed it. In order to heat up water a lot of heat is required to accomplish that. In return the rubber does not become weak because the water is absorbing majority of the heat. Since the water absorbs the heat instead of the balloon there is no pressure on the rubber or the air inside the balloon which prevents it from popping. 

Practical Uses: Boiling Water Fans in computers Coolant system in cars Making tea Furnaces

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Resource "Fireproof Balloon Experiment." //Science is Fun in the Lab of Shakhashiri//. Web. 19 Feb. 2010. .