Lava Lamp Experiment

SUBMITTED BY: Beaverlodge Public Library


  • Empty Water Bottle (500ml, with lid)
  • Vegetable Oil
  • Water
  • Food Colouring
  • Wooden Skewer/Wooden spoon
  • Alka-Seltzer Tablets
  • Glitter (Optional, but makes it cooler!)


1.  Fill the empty water bottle about 2/3 full with vegetable oil.

images/lava lamp/Step 1.jpg

2. Fill the rest of the bottle with water, leaving a little space at the top (about one-inch). The water will settle to the bottom.

images/lava lamp/Step 2.jpg

3.  Add a few drops of food colouring. If you are adding glitter to your lava lamp, you can do so now.

images/lava lamp/Step 3.jpg
images/lava lamp/Step 3.5.jpg

4.  Use a wooden skewer or the handle of a wooden spoon to gently stir the water and food colouring at the bottom of the bottle. We do not recommend shaking the bottle as this causes bubble to form in the oil and your lava lamp will not work as well.

images/lava lamp/Step 4.jpg

5.  When you are ready for the fun part, break an alka-seltzer tab into four pieces. Drop the tablet  pieces into the bottle one at a time.

images/lava lamp/Step 4 Finished Product.jpg


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