Come and meet a team of scientists from the University of Exeter, and discover what the science of light and materials reveals about different museum objects. Take part in hands-on experiments and demonstrations throughout the day. Learn how butterflies get their colours, why emeralds are green but rubies are red, and many more natural marvels relating to light and colour. There will be objects to handle, gadgets to make and ideas for more experiments you can do at home. Curious people of all ages welcome!