9 episodesFirst aired 16 September 1978
E1Sept 19783m
The Tokens harmonize Newton's theory that gravity keeps things down.
E2Nov 19783m
A solar system tour of the planets.
E3Jan 19793m
A trip that makes understanding the digestive system easy to swallow.
E4Mar 19793m
An energetic, enthusiastic look at the cardiovascular system.
E5Mar 19793m
Thirty years later, the world is still singing the "Energy Blues."
E6May 19793m
A look at what skeletons are really like and do.
E7May 19793m
A dazzling look at how electricity works.
E8Jun 19793m
Your nervous system sends that urgent message to your brain.
E9Jul 19793m
Learn about weather and how it is created.
