Gilbert Gas's Balloon Experiment


Objective:
To demonstrate the presence of carbon dioxide gas in soda

Materials:
One round nine-inch balloon
One small bottle of carbonated soda
Teaspoon
Salt


Procedure:
Put a teaspoon of salt in the balloon.  Cover the mouth of the soda bottle with the balloon.  Pick up the balloon so the salt will go into the soda.  Watch and observe what happens.  It is a good idea to put the soda on some newspaper.  This can get messy!


Conclusion:
The salt releases the carbon dioxide from the soda, making the balloon inflate.  The more carbon dioxide the soda has, the bigger the balloon will get.