Make a Lava Lamp

Make an easy lava lamp with a few ingredients.

Lava Lamp

  • 600ml bottle with lid
  • Vegetable oil
  • Water
  • Food colouring
  • Alka-Seltzer tablets


  1. ¼ fill bottle with water
  2. Add 5 drops of food colouring
  3. Fill the rest of the bottle with oil – leaving 2cm space from the top
  4. Add 1 Alka-Seltzer tablet
  5. Watch the reaction
  6. Once the bubbles have stopped put the lid back on and keep for next time.
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