A dark table with a single beam of light shooting across it. It travels slowly, so you can really watch where it goes — and watch what happens when something gets in its way.
Glass makes it bend
Drop a block of glass in the way and the beam bends as it crosses in. Tilt it far enough and the light can't get out at all — it gets trapped inside and bounces back.
A mirror makes it bounce
A mirror sends the beam straight back off at the same slant it came in. Turn the mirror and you can aim the bounce — like a pool shot made of light.
A lens gathers it
A lens pulls many beams together into one bright dot — the focus. It's the trick inside a magnifying glass, a camera, and your own eye.
Play, then learn why
Aim the beam to reach the small target — that's the game. Or just play and watch. When you want to know why the light did that, tap 🔬. The science comes only when you ask.