Forgotten your chemistry lessons? You can now brush up via video, thanks to the University of Nottingham in the UK, which has launched a website called the Periodic Table of Videos. Each of the 118 elements gets its own lively video clip detailing its properties and uses as well as some risky experiments – see hot, airborne sodium hitting a camcorder, for instance (www.periodicvideos.com).
Kids can learn how to reduce their impact on the climate by playing an online game: Keep Winter Cool or the Snowman Gets It. Players perform energy-saving actions, like switching off lights and appliances, to…
