SCIENCE CHALLENGE The Association for Science Education and British Association for the Advancement of Science, sponsored by Nuclear Electric, are inviting pupils aged 9-13 to carry out science investigations on topics of their choice. To carry on to stage two - and the chance to join a day of science investigations, drama and quizzes, hosted by Jenny Hull of BBC's How Do They Do That? - schools must submit by March 31 an A2 broadsheet summary of their classroom project. Trophies, generous cash prizes and certificates will also be awarded. Details: Caroline McGrath, 01932 567243.
DESIGN A CHRISTMAS CARD Stannah Stairlifts and Arthritis Care are inviting budding artists in two age categories, 16 and under and over 16, to design a Christmas card and submit it by March 31. The two winning designs will receive Pounds 500 each. Proceeds from the sale of the cards go directly to Arthritis Care. Details: StannahArthritis Care Christmas Card Competition, PO Box 271, London WC2B 5LS.