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Rainbows are actually full circles — we usually just see the top half.

Rainbows are actually full circles — we usually just see the top half.

A rainbow is really a complete ring of light, but the ground hides the bottom part. From high up in an aeroplane, you can sometimes see a rainbow as a full circle.

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More facts about Weather

Thunder is the loud sound that lightning makes. Thunder is the loud sound that lightning makes. Snow is made of tiny ice crystals falling from clouds. Snow is made of tiny ice crystals falling from clouds. Lightning is about five times hotter than the surface of the Sun. Lightning is about five times hotter than the surface of the Sun. Wind is just air moving from one place to another. Wind is just air moving from one place to another. A rainbow appears when sunlight shines through raindrops. A rainbow appears when sunlight shines through raindrops.