Did you know that you can blow up a balloon without using your mouth or a helium tank? You totally can. This super fun Sugar & Yeast Balloon Experiment will have kids wondering how it works. Much like our magic light bulb balloon experiment, this balloon experiment is easy to do. This is one of those experiments where the kids can do most if not all of the work. The only thing they might need help with is putting the balloon over the bottle opening. Everything else is easy-peasy. This is a great preschool or kindergarten science experiment and would even be a good balloon science fair project.
*Affiliate links are present.*
- Packet of yeast (We used Rapid Rise Yeast, but it doesn't matter.)
- Empty Water Bottle
How To Blow Up a Balloon with Yeast
Fill the bottle about half full with warm water.
Add a package of yeast.
Place the balloon over the bottle opening.
Now you wait for the magic to happen. This will take a while. I'd say we left ours for over an hour to let our balloon get really good and inflated.
It will slowly get bigger...
How does the yeast balloon experiment work?
More fun science experiments for kids you might like: