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Heat (Thermodynamics) Science Fair Project

Fire-Resistant Balloons

Fire-Resistant Balloons | Science Fair Projects | STEM Projects
Ever wondered if a balloon filled with water can withstand fire? In this project, you'll find out by testing a balloon filled with air and one filled with water. See which one can withstand the heat of a candle!


The hypothesis is that a balloon filled with water will be able to withstand fire.

Method & Materials

You will inflate two balloons, one with air and one with water, and then hold them over a lit candle. Observe and record what happens.
You will need a matchbox, a candle, a yellow colored balloon, a blue colored balloon, and half a cup of water.


The experiment showed that the yellow colored balloon with only air exploded when held on top of the candle, but the blue colored balloon filled with water did not explode. This proves that the hypothesis is true.

Why do this project?

This science project is interesting because it shows how thermal conduction works and how different materials can withstand heat.

Also Consider

Consider testing the balloons in hot and cold water to observe the changes, or try using different materials for the balloons.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

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