Sunny beads change colour in sunlight because they are made from a special ´reversible photo chromic´ material. This material changes its chemical structure when exposed to ultraviolet light (like sunlight), allowing it to absorb a coloured pigment or dye. Once out of the sunlight, it becomes colourless again.

• pack contains approx 100 pony beads


• beads turn from white to light blue, dark blue, purple, pink, yellow and orange when exposed to sunlight


• a great way to teach about UV light, particularly for girls


• includes ideas for simple experiments


• beads can be used to make necklaces, bracelets or hair braids


• Not suitable for under 3s because of small parts