Book excerpt: This revision guide provides in-depth coverage of all the externally assessed course content for GCSE OCR B Additional Science. This book can be used to support study throughout the course and as a revision aid in the build up to exams. * In-depth coverage provides everything required for thorough exam preparation * Detailed explanations and diagrams help consolidate and build on knowledge throughout the course * Clear design and direct references to the specification provide structured revision and maximum assurance. This revision guide provides in-depth coverage of all the externally assessed course content for GCSE OCR B Additional Science. This book can be used to support study throughout the course and as a revision aid in the build up to exams. * In-depth coverage provides everything required for thorough exam preparation * Detailed explanations and diagrams help consolidate and build on knowledge throughout the course * Clear design and direct references to the specification provide structured revision and maximum assurance.