Inflating Balloons…The Weird Way

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Grace performed a nifty little experiment today for Science.  She took a really roundabout way to blow up balloons. 🙂  We’ve done experiments with yeast before, but this one was a fun addition.

First she gathered supplies...balloons, two plastic bottles, a "funnel" (we used a rolled up piece of paper), yeast, sugar, a tablespoon, and a measuring cup.  (Not all pictured. ;) )

First she gathered supplies…balloons, two plastic bottles, a “funnel” (we used a rolled up piece of paper), yeast, sugar, a tablespoon, and a measuring cup. (Not all pictured. 😉 )

 

She added one cup of warm water and a packet of yeast to each bottle.  One bottle also got two tablespoons of sugar.  She swirled the bottles a bit to mix the contents and then popped a balloon on top of each one.

She added one cup of warm water and a packet of yeast to each bottle. One bottle also got two tablespoons of sugar. She swirled the bottles a bit to mix the contents and then popped a balloon on top of each one.

 

And then we watched the magic happen!  Okay, so it doesn't look so magical right now, but just wait...

And then we watched the magic happen! Okay, so it doesn’t look so magical right now, but just wait…

 

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…and keep waiting…

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…and, whammo! The bottle that had sugar did an okay job of blowing up a balloon. Yay, carbon dioxide! 🙂

(Yes, we’re aware that we should have had two of the same bottles, but these were scavenged from our recycling bin…I wasn’t about to go to the store to buy matching bottles. 😉 )

If you do this one at home, be sure to have some tape handy.  We sprung a couple of leaks around the top of the bottle with sugar, and the tape handled damage control pretty well.

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