The Invisible Energy in Light

Solar beads are white when there is no ultraviolet radiation.The beads contain special pigments that
change color when they absorb ultraviolet (UV)radiation. They are not affected by visible light and do not react to indoor light or when shielded from UV radiation.
EIA Energy has lots of great energy related stories, hands-on activities, and research articles for your classroom! For more curriculum-based lessons visit: http://www.eia.gov/kids/