Sir Isaac Newton drops by and drops some knowledge. He helps explain why the tides ebb and flow.

Then, an oceanographer/surfer tells us where waves come from and how they get their shape – cowabunga! Plus we hear about what it’s like for marine life that move to a new neighborhood once or twice a day. Sometimes it’s underwater, sometimes it’s not.

Brains On! is an award-winning audio show for kids and families from American Public Media.