We found this post on Pinterest that claims you can use a combination of baking soda and vinegar to replace helium in balloons. Above is a screen shot of the pin that is linked to the original post.
We may not be chemistry majors, but this seemed a little fishy to us! We decided to call shenanigans! Below is our attempt this Pinterest project.
Step 1: Gather your materials
1 box of baking soda
1 bottle of vinegar
1 balloon (or more if you want)
Step 2: Fill about 1/3 of the bottle with vinegar.
Step 3: Fill 1/2 of the balloon with baking soda.
Step 4: Place the balloon around the opening of the bottle, making sure the baking soda doesn’t fall in.
Step 6: Watch it inflate!
Step 7: Tie and see if it floats….. FAIL
Conclusion: If you need balloons to put on your floor then this is the perfect solution, but it definitely does not replace helium- the balloon didn’t float at all! It was still a really fun experiment, so it wasn’t a complete waste.