Take it further
Got a passion for science? Find out about studying science at The Open University.
Unzip your genes
Try our quiz to determine whether common traits are hereditary or influenced by the environment.
Discover the elements
We're putting the final touches on a new way to look at the elements of the Periodic Table. Learn about the role of elements in the human body
Challenge your ears
Have you tried: The Shepard Tone illusion?
Bang on TV
Dallas downs his toothbrush to discover what causes tooth decay and gum disease, Yan explains why refreezing food is not a great idea, and Jem investigates new research that electric lights can play havoc with the way we sleep..
Bang Goes The Theory can be seen on BBC One (England) and BBC Two (Scotland and Wales) on September 19th at 7.30pm. Full schedule and iPlayer links are on bbc.co.uk. Read more about the current series.