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Floating Rainbows Science Experiment


My children love doing science projects with me in the backyard. Last week, we enjoy the relaxing and fascinating floating rainbows science project. Children can do this in smaller jars and experience with the different combinations of colors they can create.


Children will learn during this project that food coloring is more dense than oil, and the two do not mix. Instead, it passes through the oil to mix with the water. The drops of food coloring will float in the oil for a few moments before creating floating rainbows in the glass jar.


What you will need:

  • Clear glass jar
  • Vegetable oil
  • Food Coloring


What to do:

  1. Place the jar at your children’s eye level
  2. Fill the jar with water and a thick layer of oil on top of the water
  3. Squeeze a few drops of food coloring into the jar


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