Diamonds, Popcorn and Cancer Bang Goes the Theory : Season 5 Episode 1
BBC One 30m
Aired: August 15th, 2011 @ 7:30 PM EST on BBC One
Jem makes his own diamond and then proves they aren't forever. Dr Yan explains the science of popcorn, and Dallas investigates why we haven't cured cancer yet, meeting the team that hope to change that.
