Floating Colors

Want a simple, eye-catching experiment that teaches kids about density and looks super cool while doing it? This Floating Colors activity is a fun way to explore how different liquids interact and it’s perfect for curious little scientists!

  • Category: Early chemistry

You’ll Need:

  • ⁠ ⁠Vegetable oil
  • ⁠ ⁠Water
  • ⁠ ⁠Liquid food coloring
  • ⁠ ⁠A shallow dish or casserole
  • ⁠ ⁠A small cup for mixing
  • ⁠ ⁠A spoon or dropper

Let’s Make the Magic Happen!

  1. Pour a layer of oil into your shallow dish—just enough to cover the bottom.
  2. In a separate cup, combine a bit of water with a few drops of food coloring. You can make several mixtures using different colors.
  3. Use a spoon or dropper to gently add the colored water droplets into the oil.
  4. The water blobs will float and stay separate in the oil, with the food coloring swirling gently inside them like tiny planets!

What’s Happening Here?

  • Water is heavier than oil, so it sinks to the bottom while the oil floats on top.
  • Oil and water don’t like to mix—they stay apart like two friends who don’t want to hold hands.
  • Food coloring mixes with the water, not the oil, so the colors stay inside the little water blobs like colorful bubbles.

Why We Love It:

  • ⁠ ⁠It’s simple, colorful, and totally mesmerizing.
  • ⁠ ⁠No harsh ingredients—perfect for toddlers and preschoolers.
  • ⁠ ⁠A great way to introduce density and chemical interactions in a visual, hands-on way.

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