Balloon Expansion with Baking Soda and Vinegar

Question: Does baking soda and vinegar create carbon dioxide?

Hypothesis:

Our hypothesis is that mixing vinegar and baking soda will create co2 which will expand the balloon.

Our Experiment

Materials: 

You will need:

• Baking soda
• Vinegar
• Plastic bottle
• 1 balloon
• A plastic funnel
• Measuring cup
• Measuring spoon

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Safety Procedures

  You must wear gloves during the experiment.

Procedure:

1.  Place about 1/4 cup of vinegar in the bottle, using a funnel if needed. 
2. Place 1/2 teaspoon of baking soda inside the balloon using funnel if needed.
3. Attach the balloon to the top of the bottle, taking care to keep to keep the balloon hanging down from the side of the bottle.
4. Quickly raise the balloon over the bottle and shake the baking soda down the balloon

The Science behind it

The balloon should expand due to the reaction of the vinegar and baking soda to make carbon dioxide.  The pressure of co2 gas produced is enough to blow up the balloon.

Conclusion

Basically mixing vinegar and baking soda will create co2 which will expand the balloon. 

About Nick

Hi!  My name is Nick and I am one of the authors of this project.  I hope you have a magnificent time at science night.  Just don't forget about us!

About Vinny

Hi my name is Vinny and am one of the authors of the project.  Come to us first when you go to science night.  But remember: Saftey first!