Lava Lamp

45 Minutes | All | Indoors

Make yourself a lava lamp



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Lava Lamp

45 Minutes | All | Indoors

  • Clear plastic bottle
  • Vegetable oil
  • Water
  • Food colouring
  • Alka-seltzer

  1. Fill the bottle most of the way with vegetable oil
  2. Fill the rest of the bottle with water
  3. The water will sink to the bottom under the oil and look like little, clear blobs
  4. Add a few drops of food colouring; your choice of color
  5. The food colouring is water-based, so it will also sink and colour the water that is now at the bottom of the flask
  6. Break an alka-seltzer tablet into a few small pieces, and drop them in the flask one at a time
  7. Watch your lava lamp erupt into activity! As the reaction slows down, simply add more alka-seltzer

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