What causes a Rainbow?

Question: What causes a Rainbow?
- Keywords:
  rainbow
Asked by Sammy to Hayley, Jimi on 18 Mar 2016. This question was also asked by Lily.
- Jimi Wills answered on 18 Mar 2016:
  
  Rainbows ocurr when sunlight travels through droplets of water. The light hits the droplet at an angle and changes direction slightly… due to something called the refractive index… you’ll learn about that in school at some point.
  
  But different colours change direction by different amounts, and so the colours get separated out and we see a rainbow.
- Hayley Moulding answered on 18 Mar 2016:
  
  Red and yellow and pink and greeeeeeen..Sorry just like the song!! 🙂
  
  It is sunlight that reflects and travels through water. The light changes direction depending on the water droplet it hit and it goes off somewhere else. That other direction means that depending on what angle it went off at, it will produce a different colour.
  
  I can sing a rainbowww!!