Rainbows

Rainbows

Introduction When the Sun comes out after it rains, run outside. You may see a rainbow in the sky.

Rainbows are tricks made by light. We can see them, but we can't touch them or walk around them. They seem to move away when we try to get close to them. Science can explain how rainbows happen.

Where and When Rainbows Appear Look around the next time you see a rainbow. The Sun will be shining from behind you. There will be rain in front of you, where you'll see the rainbow.

Rainbows need water drops and sunlight to form. They can even form under a bright moon. These are called moonbows.

We usually see a rainbow as a half circle. It actually forms a full circle. From the ground, we can only see the top half.