By Mandy Ross
By Parker, Steve
By Oxlade, Chris
By Foster, Leila
By Paul Brown
By Clements, Gillian
By O'Sullivan, Joan, etc., Merrick, WILLIAM, Minot, Janet, Stratton, Frances
By Warnes, Tim, Chapman, Jane
By Jeffers, Oliver
By Christopher Lloyd, Andy Forshaw
By Holmes, Sandra
By Isabel Thomas
By Scrine, Rick, Clewes, Eric
By Ward, Carole
By Austen, J.A.
By Pyne, Colin, Bedford, John
By Halliwell, B., Waterhouse, Sidney
By Butterworth, Nick, Butterworth, Nick
By O. Kasicki, Kasicki, O.
By Science Education Group, University of York, Curriculum Centre Nuffield
By Shuter, Jane
By Eldin, Peter
By Platt, Richard