Refracting sunlight causes sunlight to split into different colors.
Rainbows are formed when sunlight is refracted through raindrops.
Light splits into different colors when sunlight hits raindrops.
What happens to light when it hits rain?
  It splits into different color
  It gets brighter
  chemical changes
  It disappears
  It gets darker
  Something that makes plants green
  reflect objectstowards the eye
  after too much water received