As part of the Science topic on light, the Year 6 children learned about the experiment that Sir Isaac Newton carried out in 1666 to show that when white light is refracted through a prism, all the colours within it are revealed. By including another prism, he managed to refract the colours back to white light. This was all the proof needed and complete surprise to people at the time as they thought that it was the object itself that contained the colours.
Firstly, children made their own coloured discs with all the colours of the spectrum on which, when spun, merged to form white. Then they experimented with pairs of colours which merged to form a new colour such as purple.
Meanwhile they were able to witness at first hand how Newton’s experiment worked in a darkened room with a light source and a perspex prism.