This term, year 6 have been learning about light. As a part of this, we have also been learning about the spectrum of colours.
After learning about refraction of light, we learned about dispersal. When light disperses, after exiting a prism, the colours within the light, which have different speeds, disperse and the light splits into different colours. This looks like a rainbow.
Year 6 have been exploring what happens when you put the colours back together. When you mix a lot of colours of paint, you get a murky brown colour. When you mix colours of light, they become white. The spinners showed the children that this is possible.