Today for our Artsy Wednesdays we tried another art and science experiment, a colorful acid-base chemical reaction painting.


We used the interaction of colored vinegar and sodium bicarbonate to create a chemical reaction that resulted in a rainbow of colors. FriBoy, who is 6 by the way, thought this was magical and I love this attitude to science projects because I think in time it will keep the flame of curiosity and wonder burning. Science is magical!

Here is what we used:

  • Vinegar
  • Baking soda
  • Food coloring
  • A white canvas or watercolor paper
  • Small goblets to mix the stuff (I used our eau de vie glasses :)), bottle caps could also do

Fill each goblet/cap with vinegar, add a few drops of the food coloring. Mix the colors any way you want.


Place them on the white canvas or watercolor paper and add 1/2 teaspoon of baking soda to each goblet and watch the reaction and how the colors mix.

This is a very messy experiment, I don’t mind the mess but if you do, it’s better to do it in a controlled environment: use protection for the table and set up the quantities the child can use from the beginning.

Have fun!


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