Rainbow Bubbles

Bubbles are one of the most fun things to play with…but what colour are they?

Transparent? Clear?

How about if you could make your bubbles all the colours of the rainbow?

Well you can in this very simple experiment.

All you need is:

An empty clear bottle

Washing up liquid


A sink

An overcast day (works best)


Fill the bottle about three quarters full with water

Rainbow Bubbles, Science-Sparks


Add a squirt (scientific measuring there!) of washing up liquid

Rainbow Bubbles, Science-Sparks

Quickly tip the bottle and pour the water out fast.

Rainbow Bubbles, Science-Sparks

You will find that the bottle is left full of bubbles.

Rainbow Bubbles, Science-Sparks

These will look clear and normal to begin with but place the bottle on a windowsill and wait and watch over the next 30 seconds.

Rainbow Bubbles, Science-Sparks

Rainbow Bubbles, Science-Sparks

You will find that the bubbles will start to show signs of colour that will get stronger and stronger and that each bubble will look like it has been coloured like a rainbow!

How pretty!

The science bit!

Visible Light from the sun is known as white light. It contains a range of colours all with different wave lengths that when together form white light.

These colour are

Richard Of York Gave Battle in Vain

Red, Orange, Yellow, Green, Blue, Indigo and violet

When the White light shine through the film of the bubble, the light is reflected and dispersed, splitting white light into its different wave length and showing all the colours!



There are 30 comments

  1. playfullearners

    The weathers not too great here this week and I have a great big bottle of bubble mix in the cupboard. I think they may be coming out today :0)

  2. jackie @ happy hooligans

    Wow! This is so cool! We’ll be doing this for sure! (and I’ve never hear the Richard of York phrase! We say Roy G. Biv, but quite honestly, when I was a kid, I used to get mixed up and say Roy B. Giv so it wasn’t a sure-fire way to remember the order for me lol)

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