Three friends laughing as they solve a rainbow riddle at an outdoor fair

30 Rainbow Riddles With Answers: Color Puzzles and Light Science for Kids

A rainbow appears when sunlight shines through raindrops and splits into colors. It looks simple, but there is a lot of science behind it, from refraction to double rainbows and moonbows. These riddles turn that science into puzzles kids can solve.

Each riddle has a different answer, covering rainbow colors, prisms, Isaac Newton, rainbow-colored animals and a few color-mixing brain teasers.

Easy Rainbow Riddles for Kids

  • I am a colorful arch that appears in the sky after the rain. What am I? πŸ‘‰ A rainbow
  • To make a rainbow you need sunshine and lots of me falling from the sky. What am I? πŸ‘‰ Raindrops
  • I am the color on the very top of a rainbow. What am I? πŸ‘‰ Red
  • I am the fourth color of the rainbow, right in the middle. What am I? πŸ‘‰ Green
  • I am the last color on the inside edge of a rainbow. What am I? πŸ‘‰ Violet
  • I am a triangle of glass that splits white light into rainbow colors. What am I? πŸ‘‰ A prism
  • Irish legend says a leprechaun hides me at the end of the rainbow. What am I? πŸ‘‰ A pot of gold
  • I am a made-up name that helps kids remember the rainbow’s colors in order. Who am I? πŸ‘‰ Roy G. Biv
  • I am the fine spray from a garden hose that can make a little rainbow on a sunny day. What am I? πŸ‘‰ Mist
  • I am a shiny disc, and when light hits me I throw rainbows on the wall. What am I? πŸ‘‰ A CD
  • I float through the air, I am made of soap and swirly rainbow colors cover my skin. What am I? πŸ‘‰ A soap bubble
  • You are most likely to see a rainbow at these times, when the sun is low in the sky. When? πŸ‘‰ Morning or late afternoon

Rainbow Science Riddles

These riddles are based on real light science. The note after each answer explains it.

  • To see a rainbow, the sun has to be in this place compared to you. Where? πŸ‘‰ Behind you
  • I am a second, fainter rainbow above the first one, and my colors are in reverse order. What am I? πŸ‘‰ A double rainbow
  • I used a prism to show that white light is really a mix of colors. Who am I? πŸ‘‰ Isaac Newton
  • A rainbow is really this shape, but the ground usually hides part of it. What shape? πŸ‘‰ A full circle (pilots sometimes see the whole circle from the air)
  • I am a rainbow made by moonlight instead of sunlight. What am I? πŸ‘‰ A moonbow
  • I am a pale, almost white rainbow that forms in fog. What am I? πŸ‘‰ A fogbow
  • I am the bending of light as it passes into a raindrop. What am I? πŸ‘‰ Refraction
  • I am the U.S. state nicknamed the Rainbow State, and a rainbow appears on my license plates. What am I? πŸ‘‰ Hawaii
  • Isaac Newton decided the rainbow had this many colors. How many? πŸ‘‰ Seven

Rainbow-Colored Animal Riddles

  • I am a fish named after the rainbow because of the pink stripe along my side. What am I? πŸ‘‰ A rainbow trout
  • I am a rainforest bird with a huge, brightly colored beak. What am I? πŸ‘‰ A toucan
  • I am a lizard that can change the color of my skin. What am I? πŸ‘‰ A chameleon

Rainbow Color Brain Teasers

  • A rainbow has 7 colors. How many colors are there in 4 rainbows? πŸ‘‰ 28
  • Mix red and yellow paint together. Which rainbow color do you get? πŸ‘‰ Orange
  • Mix red and blue paint together. What color do you get? πŸ‘‰ Purple
  • I am the rainbow color between blue and violet that many people forget. What am I? πŸ‘‰ Indigo
  • A rainbow appears at 5 p.m. and fades 15 minutes later. What time does it fade? πŸ‘‰ 5:15 p.m.
  • A double rainbow shines over a calm lake that reflects the whole sky. How many rainbows can you see? πŸ‘‰ Four

Want more riddles? Browse our blog for more collections, and if you spot a mistake in any answer, let us know on our Contact page.

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