We have all seen reflections in the mirror or in a lake, but reflections are much better with lasers!
Introducing the game Khet.
This is a fun logic game that involves trying to hit the opponents pharaoh with a laser by reflecting it off of mirrors.
There are more rules but basically on your turn you move one piece (move to an adjacent spot or rotate 90 degrees). A piece that is hit on a non-mirrored side is eliminated. If your pharaoh is hit, you lose. Some of the pieces have mirrored sides that will reflect the laser. Some pieces have no mirrored sides and just function as blockers (which are eliminated after they are hit).
It is a great strategy game to teach logic and planning ahead a few moves. It also gives kids the experience of seeing how light reflects off of a mirror. Some of my kids did not understand what direction the laser would go after hitting a mirror, but after playing they started to understand.
When you hit a piece with the laser, it lights up. (more fun if the room is dark)
You can also create some dust or smoke to show the path of the laser.
The game I have is the original Khet game. Now there is The Laser Game: Khet 2.0. It says that it have eye safe lasers, which is great. and the lasers are not build into the board, so that would be great for other science experiments.
You could also use this game to talk about the fact that the angle of incidence equals the angle of reflection. In the game the laser hits the mirrors at a 45 degree angle, which means it also leaves at a 45 degree angle. That way it follows the grid on the board (45 + 45 = 90).
Turning learning into playing a game is always great.
Check out the rest of the properties of light series here.