Easy Science Experiments For Kids: Make your own lava lamp

Here follow my instructions to make your own lava lamp experiment. This experiment will not take long and you only need things you likely already have in your kitchen. Lava lamps are fascinating, aren’t they? I love to see the bubbles rise up through the glass.

Remember to start the experiment with a hypothesis, what do you think will happen?

Instructions for parents: Read this first.

Material included:

  • Water
  • Rapeseed oil or olive oil
  • Food color
  • 1-2 Effervescent tablet(s)

Additional things you will need:

  • A glass (preferably in a narrow and high form)


  1. Fill 1/4 of the glass with water.
  2. Fill the rest of the glass with rapeseed oil or olive oil.
  3. Pour a drop of food color into the glass.
  4. What happens?
  5. Take the effervescent tablet and split it into three pieces.
  6. Add one piece of the effervescent tablet to the glass.
  7. What happens?
  8. Add the second piece of the effervescent tablet to the glass.
  9. Add the third piece in the glass.
  10. What happens?
  11. Now add a whole effervescent tablet to the glass.
  12. What happens?


Water and oil don’t like each other (it is called polar and non-polar substances) and will therefore not be mixed, but instead, fall into two layers. The water weighs more than oil and that is why the water settles at the bottom. When the effervescent tablet comes into contact with water, carbon dioxide, which is a gas, is released. Gas weighs less than water and oil, so the gas will rise to the top.

To see others do the experiment look at this video:

Click the link to get to my Kids Christmas Calendar for more experiments.

Do you have any questions or comments about the experiment? Just leave a comment below!



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