Gases, Liquids and Solids is a title in the new Cambridge Advanced Sciences series. It has been developed specifically for the new specifications for Advanced Level Chemistry for teaching from September 2000. Gases, Liquids and Solids has been endorsed by OCR for use with the OCR Chemistry specification A. It provides full coverage of the Chemistry option module of the same name. In combination with other books in the series it provides full coverage of the Advanced Level specifications. Learning objectives are clearly defined, so that students know exactly what they need to learn. Self-assessment questions (with answers) and exam-style end-of-chapter exercises offer excellent opportunities for independent study. Chapter introductions and summaries provide the basis for structured revision. Full-colour illustration and student-friendly design make the science accessible to all. Series gives comprehensive OCR syllabus coverage, so these are the only books students will need. Each book clearly defines the learning objectives that are covered, so students know exactly what they need to learn. This text is a complete and self contained accompaniment to the optional Advanced Level Chemistry module of the same name.