Written for AQA specification A option 1A, this text can be used for half a full-course or a wole short-course GCSE. It gives support for all the coursework requirements in this option and has activities, key terms, a summary of key points and exam-style questions.

• Activities and tasks help students to use what they have learned and develop the skills they need.
• A summary of the key points to be learned consolidates students' understanding.
• A page of exam-style questions at the end of each section boosts students' confidence and helps prepare them for the exam.