Rainbows

What Is a Rainbow?

A rainbow is a colorful arch in the sky.
It appears after rain when the sun shines.
You can see red, orange, yellow, green, blue, indigo, and violet.
These are the colors of a rainbow.

How a Rainbow Forms

When sunlight passes through tiny drops of water, the light bends.
The light also splits into many colors.
Each water drop sends a little piece of the rainbow to your eyes.
All the pieces together make a big, bright arc.

Fun Rainbow Facts

• A rainbow is always a half‑circle, but we often only see part of it.
• You cannot reach the end of a rainbow – it moves as you move.
• Sometimes you can see two rainbows at once. The second one is fainter and its colors are in reverse order.

Look up after a rain shower and you might see a beautiful rainbow!