BLOW IT UP ROOM 118

BLOW IT UP Room 118

Can you inflate a balloon without using your mouth? QUESTION

PURPOSE To observe the chemical activity of mixing baking soda with vinegar.

HYPOTHESIS I believe that you can inflate a balloon without using your mouth because there are certain chemicals that may cause such inflation.

MATERIALS  Baking soda  Empty soda bottle  Vinegar  Balloon  Straw or a funnel

PROCEDURES  Place two teaspoons of baking soda into the empty pop bottle  Add an inch of water in the bottle  Next, place a tablespoon of vinegar into the balloon  Put 1tbs., 3 tbs., and 5 tbs. in three different balloons.  Cover the top of the bottle with the mouth of the balloon.  When the balloon is on correctly, lift the end of the balloon releasing the vinegar into the bottle where the baking soda and water waits  Watch what happens  Does the balloon expand? Does the balloon shrink?

OBSERVATION With 1 tablespoon of baking soda, the balloon inflated very little. With the 3 tablespoons of baking soda, the balloon inflated a lot more. With the 5 tablespoons of baking soda, the balloon inflated a lot more and some balloons popped off the bottle.

DATA SubstancesResults Vinegar with 1 TablespoonsBalloon inflates a little Vinegar with 3 TablespoonsBalloon inflates a lot Vinegar with 5 TablespoonsBalloon inflates and pops off the bottle

CONCLUSION My conclusion was correct! You can inflate a balloon without the use of your mouth. Why? Because when the vinegar reaches the baking soda, a chemical reaction takes place. During this reaction carbon dioxide is formed. This gas is released from its liquid/solid state which makes the balloon expand. See how large you can make the balloon by adding more baking soda, vinegar, and water.