Thanks to Megan Metropolis Bath and Body sent me this delightful idea that will turn bath time into fun time.

2 parts baking soda
1 part cornstarch
1 part citric acid (optional, but helps the fizz — available at most grocery stores)
1-2 tsp vegetable oil *
Food coloring (optional, but great fun if gifting to kids)
*If the fizz balls don’t seem to stay together well add more vegetable oil to bond the ingredients together.


  1. Mix all of the dry ingredients together, then add oil.
  2. Carefully add the green food coloring, making sure not to add too much which would activate the baking soda.
  3. Roll into balls and let dry on wax paper
  4. Drop 1-2 fizz balls into the bath and watch the fizz go!