If the fizzing stops, you can add more baking soda and see what happens. The more vinegar you add, the more bubbles will appear. This will decrease the fizziness of the reaction but it will still be fun and can help extend the activity. To make the vinegar go farther, you can add water to it.
Use a squirt bottle, eye droppers, or spoons to add vinegar to the baking soda. It makes for a fun surprise to see what colors will appear. If your kids don’t watch you do the setup of the activity, they won’t know there are colors under the baking soda. Cover the liquid watercolors with a layer of baking soda. My kids tend to spill a little so we do this activity on the kitchen floor. You might also want to cover your work surface or place towels down. I placed the cups in a large plastic storage bin.
I talked to Aiden and Lily about what colors I needed to add to get the rest of the rainbow. (You can also use food coloring, but be warned that food coloring has the potential to stain clothes and surfaces.) I have red, yellow, and blue liquid watercolors. I started by adding washable liquid watercolors to each cup. I set up the fizzy color mixing experiment for them to explore what happens when you mix different colors. Their favorite thing to explore is baking soda and vinegar. My kids love a good kitchen science experiment. Use this book to learn about colors and discuss feelings. Steve Johnson and Lou Fancher bring the emotions described by Seuss to life with their bright, expressive paintings. Seuss’s books are full of color, My Many Colored Days was actually illustrated by two other people. Affiliate links are included in this post. It’s super easy to set up and can entertain for for quite a while. Kids of all ages (toddlers and up) will love our fizzy color mixing experiment. Seuss inspired kitchen science idea for you.
Seuss! Are you celebrating Read Across America Day today? I’ve got a Dr.
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