
Why does a pencil in water look bent, and how does a bicycle reflector send light back to a driver? Follow the clues of mirrors, shadows, and coloured sheets to see how light travels, bends, and bounces.

Why does a pencil in water look bent, and how does a bicycle reflector send light back to a driver? Follow the clues of mirrors, shadows, and coloured sheets to see how light travels, bends, and bounces.