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Hydrogen and methane balloons floating without helium science experiment (explosion!)

Watch a science experiment showing how balloons can float using methane and hydrogen instead of helium. See how hydrogen is ...
FOX31 Denver

Weather at Home: Use Pop Rocks to blow up a balloon

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — If you are looking for an ...