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How to make a flying balloon without helium

This simple science experiment shows how to make a balloon fly without using helium. By mixing vinegar and baking soda, you create carbon dioxide gas that inflates the balloon through a natural ...
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The science of hot air balloons: How do they work?

ALBUQUERQUE, N.M. (KRQE) – Soon, hundreds of hot air balloons will fill the Albuquerque sky as part of the Albuquerque International Balloon Fiesta, but what goes into making a balloon fly? The answer ...