This text provides a guide to all key terms relevant to GCSE science, and is also suitable for Intermediate GNVQ syllabuses. The handbook aims to improve performance in exams, tests and coursework, by providing all the necessary information in an easy-to-use format. Each entry begins with a clear, one-sentence definition and is followed by explanation, examples and diagrams where appropriate. Entries are cross-referenced to enable students to build up knowledge of particular topics for use in answering exam questions. The book also includes a glossary of examiner's terms to help students to judge the depth of answer required.