White light consists of 7 colours. If you know the colours in a rainbow
you will know that they are red, orange, yellow, green, blue, indigo and violet. We are going to be making a colour spinner that demonstrates the fact that white light is made from the 7 colours found in a rainbow!
The first thing you are going to need to do is draw a circle on your piece of card. You will then need to cut this out and divide it into 7 sections.
You will then need to colour each section one of the 7 colours of the rainbow - red, orange, yellow, green, blue, indigo and violet
The last thing that you need to do is make 2 holes at the centre of the circle. You are going to thread a length of string through these holes and tie the two ends together.
You are now ready to wind up the colour spinner and let it go. When it starts to spin you should see that the colours start to mix together and if you can get your spinner to go fast enough the colours should appear white.
Once you have experimented with the 7 colours in the rainbow, why not try making other colour spinners using different patterns, or colours and see what happens...
The video tutorial for this activity is available on Surrey Libraries Facebook Page or Surrey Libraries YouTube Channel.
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