This book is full of clear revision notes and detailed diagrams for GCSE Chemistry students. It covers all the topics in the current course for the OCR 21st Century exams, including a section on 'How Science Works'. It contains loads of tips and a handy page of quick test questions at the end of every section to help you get ready for your exams. Plus it's all explained in straightforward language with the odd joke thrown in to help break up your revision!