Now You Know

Rainbow

How does a Rainbow Happen? Howie slides down the other side of a rainbow to find a pot of gold, and Baboo the leprechaun grants him three wishes. In their bedroom, they wonder, ,How does a rainbow happen?, They visit climatologist David Phillips at Environment Canada, who shows them how to make the colours of the rainbow with a prism, and how raindrops interact with sunlight to become little prisms that make a rainbow.