Before going through this, read the post about experiment 1 first.
As I was having fun with the vinegar and baking soda, I was also trying to blow a ballon, however it didn’t work but I decided to put it over the water bottle where the reaction was taking place and surely enough the carbon dioxide emitted by the reaction was used to blow the balloon ! Take a look!
PS: notice how the foam isn’t rising because the carbon dioxide cannot escape from the bottle and no oxygen is coming in either.