Baking Soda & Vinegar Balloon Experiment

Ready to mix, fizz, and inflate? In this fun Baking Soda & Vinegar Balloon Experiment, you’ll watch a balloon magically blow up all by itself — no air pump needed! It’s the perfect way to see how simple science reactions can create big surprises. 
 

As you combine baking soda and vinegar, you’ll explore a real chemical reaction that produces carbon dioxide gas. Watching the balloon rise teaches you about science knowledge — how gases take up space and cause movement in the world around you.
 

You’ll also practice observation and critical thinking as you notice how fast the balloon inflates, how much gas is produced, and what happens if you change the amounts of baking soda or vinegar. Each observation turns your curiosity into a learning moment.