Huff 'n' Puff

Materials (per person):

1 balloon
1 soda bottle

Directions:

1) Push the deflated balloon into the bottle and stretch the open end of the balloon back over the bottle's mouth.
2) Try to blow up the balloon, it won't work.

Explanation: The balloon won't inflate because the air inside the bottle takes up the space. There is no room for the balloon to inflate.


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