What's the best way to remember the colours of the rainbow? A puzzling question lands you in the wondrous world of light in space. Have hands-on fun by creating a kaleidoscope, and get to know Wang Zhenyi, who originated her own exact model of the solar system. The place to go to answer all your science-related questions - it's the One Stop Science Shop. Do-it-yourself experiments, a hologram entry phone, and fun stories about great scientists help visiting kids to understand some of the trickiest principles of science.