Classic Science: Baking Soda and Vinegar

Last week, we made Fizzing Easter Eggs with baking soda and vinegar. My boys went crazy for it! I wanted to capitalize on this new interest, so I planned an elaborate baking soda and vinegar painting project- that ultimately failed. Not just a little fail either-  it was a total disaster. I may or may not have considered stress eating some chocolate when the kids weren’t looking.  So we scrapped that project and went right for the main event: out of control foaming chemical reactions!

Fizzing, bright colors, lots of foamy bubbles- what more could you ask for from a science experiment you can put together in seconds with things you already have in the house?! This classic activity was such a hit with my boys! Hooray for the classics!

Classic Science: Baking Soda and Vinegar


baking soda


food coloring or liquid water colors

small cups or dishes

large baking dish


1. Place several tablespoons of baking soda in each of your small dishes (we used four small coffee cups).

2. Add a few drops of dye to each cup.

3. Place cups in large baking dish.

4. Add vinegar.

This is so simple and so fun! My four year old was in charge of vinegar and he liked to add enough so that it really foamed over the top of each cup. And in case you were curious, toddlers think this experiment is the coolest thing ever!

If you did this experiment as a child, I promise it is just as much fun as you remember! I hope you give it a try!

Want to try something else? My older son also loves this color mixing experiment.


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