By University of York Science Education Group, Nuffield Curriculum Centre
By Hunt, A, Sykes, A
By Nicholls, Lyn, Ratcliffe, Mary
By Gent, Dave, Ritchie, Rob, Mr Dave Gent, Mr Rob Ritchie
By Royal Society Of Chemistry
By Chris Oxlade
By Richard Spilsbury, Louise Spilsbury
By Nigel Saunders
By Gallagher, Rosemarie, Ingram, Paul
By Mills, John, Evans, Peter, Milner
By Parker, Steve
By Lambert, Mark
By Beavon, Rod, Facer, George
By Dingle, Adrian, Green, Dan, Basher, Simon
By Anita Ganeri
By Harriss, Frank
By Natalie Rompella
By Andrew Solway
By Oxlade, Chris
By Carol Baldwin
By Walker, Denise
By Atherton, M.A., Lawrence, J.K.
By Atherton, M. A., Lawrence, James Keith
By Charman, Andrew
By Frank Benfield