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Groovy Lava Lamps

Teach your little scientist about density with a fun experiment that they can keep! So grab a few household supplies and give this lava lamp science activity a try!


  • Vegetable oil

  • Water

  • Food colouring

  • Alka seltzer tabs

  • Paper towels (just incase)


  1. To begin, color about 1/2 cup of water with food coloring of your choice.

  2. Fill a glass about 3/4 full with vegetable oil.

  3. Then pour in the colored water until the liquid in the cup is about 1-2 inches from the top.

  4. Add a piece of an Alka Seltzer tab to the cup.

  5. Watch the magic happen!

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