Colour

The light from the sun is referred to as a white light as it is made up of a mixture of the 7 colours which can be seen in a rainbow. Each colour has a different wavelength. You can also see the different colours when the light is refracted by glass, a prism or oil. Because the colour is bent slightly different angle.to see a green colour the green light is reflected back into our eyes. All the other colour light is absorbed. To see a white object, all colours are reflected back into our eyes. To see black, no light is reflected back into our eyes.

Filters made up of coloured plastic can also change the colour of the light. The colour of the filter tells you what colour of light is allowed to pass through.