Balloon in a Bottle

Book Chapter by: Bruce Yeany Digital resources are stored online in your NSTA Library.

Blowing up a balloon inside a bottle is difficult if there is no place for the air to be displaced. Once a balloon is blown up inside the bottle, the balloon remains blown up even with the mouth of the balloon wide open. The project in this chapter is presented as a handy way to recycle a few soda bottles or juice containers and at the same time investigate air pressure and fluids displacement. This demonstration can be used for elementary students if they have a basis of understanding for some simple concepts about matter.

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Reviews (1)
  • on Tue Oct 15, 2013 10:28 PM

Great simple demo for air pressure. This can be duplicated easily and given to the class to determine "What is going on?" Have students draw a model as a pre-activity, work with the phenomena, and then draw a model as a post-activity. What a great way to measure growth.

Susan German  (Hallsville, MO)
Susan German (Hallsville, MO)

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