Kids love nothing more than a super cool science experiment. This experiment was no exception.  Lava Lamps! Here are instructions on how to make your own lava lamps.

You will need:

  • A bottle of tap water.
  • A bottle of sunflower/vegetable oil.
  • Clear plastic bottles (1 per child)
  • Food colouring
  • Effervescent tablets (I used Corenza C as it is a clear effervescent and inexpensive)
  • Small jug.

To make your lava lamp:

Step 1: Fill each bottle two thirds of the way with your sunflower oil.
Step 2  :Mix a water and food colouring solution in a small jug. You will need one for each different colour lava lamp you are making.
Step 3 : Fill your bottle till about 2 cm from the top with your coloured water and leave for 5 minutes to settle.
Step 4 : Break your effervescent tablet into 4 and drop each piece into your lava lamp bottle. Watch as it bubbles up into the oil. (NB!! Keep the lid off)

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