Based on the syllabus for the BHS Stage One examination, this book tests the candidate's knowledge in a question and asnwer format. Space is allowed for the student to writein the answers to typical questions likely to be asked by the examiner and the answers are given at the end of the book. Prepared by the BHS examiner for Stages One-Four, this workbook is an ideal revision aid and also contains useful advice on examination technique and a full description of how each examination is conducted.