How to Blow Up a Balloon with Baking Soda and Vinegar


Kids love to do hands-on science experiments. My boys and I are doing different experiments with baking soda and vinegar. This experiment involves blowing up a balloon with the gas resulting from the reaction of the baking soda and vinegar. Kids of all ages will love doing this experiment. We have even included a YouTube video so you can see our experiment in action. To do this project you will need:

  • Water bottle
  • Baking soda
  • Vinegar
  • Balloon
  • Funnel

You can do this experiment with larger two-liter bottles too, according to this balloon decor chicago, but we used a smaller water bottle so that we would not need to use extra baking soda and vinegar.

With the small bottle you will only need about a cup of vinegar. First use the funnel to pour about a cup of white vinegar into the water bottle.

Next place the funnel in the open end of the balloon and slowly pour about 2 teaspoons of baking soda into the balloon.

Place the open end of the balloon over the opening of the water bottle. After the balloon is attached to the bottle, raise up the balloon until the baking soda falls down into the bottle.

As the baking soda reacts with the vinegar, carbon dioxide gas will form, filling the balloon and blowing it up. I love the reaction of my boys in the video when they thought the balloon was going to burst (you will have to watch the video to see what happened!).

This was a really fun experiment and I hope you have fun doing it with your kids too.

Copyright 2014, This article may not be reprinted.


4 Comments on "How to Blow Up a Balloon with Baking Soda and Vinegar"

  1. Love this and the boys are great at demonstrations. They should make more for us to watch!

  2. This is the first time that I have seen this; I should try it with our daughter. Thanks, you did a good job for you first video.

  3. Thanks! I was really impressed with how they did when I just gave them a few instructions and then they took it from there. We are definitely going to be making more videos. We have just started homeschooling, and this is a fun alternative to a lot of book work. They thought it was really fun.

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