Earth: the Biography A nice site from the National Geographic stable. A re-branded Iain Stewart programme. Try out this nice INTERACTIVE : can you keep the earth in balance ? Click the image to check your "Earth IQ" - after each correct answer, you'll be shown a short segment of the programme. Would make a good STARTER or " REWARD " activity. Also a GOOGLE MAPS based HEALTH MAP of the world - for those who study HEALTH ISSUES.