Learn about how spreading heat across a surface can make it more durable.
~20 mL warm water
Test tube holder
Alcohol burner + lighter
The Science Behind the Reaction
The water in the balloon spreads the heat out over a larger surface of the rubber so that the rubber is not broken down by the heat, allowing the balloon to stay intact.
See if boiling hot water or freezing cold water in the balloon impacts length of time the balloon stays intact.