How do rainbows form?

August 23, 2008 6:23:49 AM PDT
Rainbows form after a late-afternoon rain, when the sun is low in the sky.

Erica's Answer:

There needs to be a break in the clouds in the western sky so that the sun can peek through. If it's still raining as you look toward the eastern horizon, you'll see that beautiful rainbow!

- Erica


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