Colors of the pectoral


  • Food coloring
  • Baking soda
  • vinegar
  • Muffin mold
  • Plastic bin (to keep things “clean”)
  • Coffee spoon


  1. Before class, put a drop of food coloring in each mold. Change color with each mold. Then put a teaspoon of baking soda to hide the dye.
  2. Place the pan in the storage bin.
  3. Ask a child to come and put vinegar in one of the molds.
  4. Let the children look at the chemical reaction and discover the color.
  5. Ask another child to come and put the vinegar in another pan.
  6. Repeat until you have made all the mussels.
  7. Make it link with the story, Eli wore a pectoral with stones of different colors.



  • You can fill a bottle of vinegar condiment to better control the amount of vinegar in each mold.

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