Lava Lamp experiment

We were back to our science experiments and this time I found a cool one called Lava lamp.

This is what it should look like. However, ours was more muddy and shaken, thanks to all the excitement!


pic courtesy bake,play smile

Anyway, here goes the list of things you will need for the experiment

Old plastic bottle – washed and dried

Oil – I used the cheapest one

Food colour


Pepfizz tablet – the ones you dissolve in water and drink to relieve acidity.Actually any fizzy tablet will do I guess.


  1. Pour water into the plastic bottle until it is around 1/4 full
  2. Pour oil until the bottle is nearly full.
  3. Wait until the oil and water have separated. Don’t let your kid touch the bottle as the experiment will flop. You need to get two separate layers


  1. Add around a dozen drops of food coloring to the bottle. P was only too glad to do this
  2. Watch as the food coloring falls through the oil and mixes with the water.
  3. Break the Pepfizz tablets into small pieces and drop one of them into the bottle,. As the tablet hits the liquid it starts fizzing. AT this point I had a squealing P.
  4. The coloured bubbles start floating and dancing around the bottle just like lava. P was shouting ‘ flying red balls, swimming red balls’  and trying to get his hands into the bottle to touch them


  1. When the bubbling stops, add another piece of Pepfizz tablet and enjoy the show again!

We had a real riot! P kept shaking the bottle for more bubbles as a result of which they just mixed and became muddy. This is our shaken lava lamp!


Hope you try it and have a bubbly time just like we did


2 thoughts on “Lava Lamp experiment

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s