Collins Revision GCSE Chemistry is an all-in-one revision guide & exam practice workbook for Key Stage 4. Written by experienced test markers it shows how each student can follow their level test their knowledge check their answers & improve. This all-in-one revision guide & workbook for GCSE Chemistry revision offers: / Complete coverage of modules 1-6 for the OCR Gateway B GCSE Science Chemistry Higher exams. / Accessible graded content & Science questions with lots of useful diagrams & illustrations. / Detachable workbook answers for flexible practice. Follow your grade test your knowledge & improve your results at Key Stage 4.