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. 
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| 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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