Copyrighted image Credit: BBC Jem makes his own gold from scrap

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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. Watch an animated introduction to the history and development of the table

Challenge your ears

Have you tried: The Shepard Tone illusion?

More about the current series

Bang on TV

Bang Goes The Theory can be seen on BBC One (England) and BBC Two (Scotland and Wales) on August 22nd at 7.30pm. Full schedule and iPlayer links are on bbc.co.uk.

In the second episode of the science series, Liz hits the beach with the RNLI to experience the power of rip currents; Dr Yan attempts to demonstrate evolution by drawing a couple of lines; and Jem is back in the workshop, turning everyday scrap into gold.

Riding the waves

Evolution explained

After the gold rush