1. Put some
water in a shallow dish.
2. Prop up a small mirror
in the water at an angle.
3. Place the dish near a window
and position the mirror so that
sunlight hits it.
The light passes
through the water and bounces off
the mirror, making a faint rainbow
appear on the wall.
If you do not have
white walls, take a large piece
of white card and hold it in front
of the wall. Adjust it until
you can see the rainbow.
of the Rainbow