It's easy to see that the sky is blue.
Have you ever wondered why?
A lot of other smart people have, too. And it took a long time to figure it out!
The light from the sun looks white. But it is really made up of all the colors of
the rainbow.
When white light shines through a prism, the light is separated into all its colors.
A prism is a specially shaped crystal.
If you visited The Land of the Magic Windows, you learned that the light you see is just one tiny bit of all the kinds of light
energy beaming around the universe--and around you!
Like energy passing through the ocean, light energy travels in waves, too. Some light
travels in short, "choppy" waves. Other light travels in long, lazy waves. Blue light waves are shorter than red light waves.
