South Kensington in London becomes the centre for a whirlwind day of Science Discovery on March 7. The Royal Albert Hall and the Science and Natural History Museums will be full of workshops, interactive lectures and investigations to entertain and inform 10 to 19-year-olds, who can find out why popcorn pops or why we need underwear; make virtual visits to Antarctica or the inside of their own digestive systems; look at the ecology of birds and reptiles; and learn how to clone a mouse. Booking for Science Discovery Day, part of National Science Week, can be made on the hotline 020 7973 3059. A visit costs pound;5 per student (pound;3.50 for members of the British Association for the Advancement of Science). Bookings must be received before February 22. Website: www.the-ba.net