WRITERS aged between 12 and 19 may enter short stories, features or action scripts for the Young Science Writer's Competition. Organised by the RDS, with Technology Ireland, the Marine Institute and the Provincial Newspapers Association, it takes entries in three categories - fact, fiction and performance - up to February 27th. Information and forms from Bridgeen McCloskey, RDS, Dublin 4 (tel: (01) 668 0866).