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How to make a teabag hot air balloon 
Gather the necessary materials. 
To make a teabag hot air balloon you will need a teabag, a pair of scissors, a lighter, a small piece of foil, markers, and parental supervision. A teabag with string attached that can stand on its own will work best for this experiment.
This experiment involves fire so parental supervision is necessary. The teabag must be unused and dry.