Safer Internet Day (8 February 2022)/Elżbieta Dras/SP8/ChełmPoland

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Balloon experiment

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How will the balloon get into the bottle? It's very easy: You need a balloon, a glass bottle, a piece of paper and matches.  Light the paper and carefully insert it into the bottle. Wait a minute. When you see smoke in the bottle, place the balloon on top of the bottle. Wait a minute and you will see a miracle!  
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