Oxford Revise is a fresh, evidence-based approach to studying; created by the teacher-trusted Oxford Science author team and informed by the latest research into the best ways to make learning stick, it organises content in the most effective way for successful learning, ideal for independent study throughout the school year and in the lead-up to exams. Based on principles of cognitive science, the simple three-step Knowledge, Retrieval, and Practice approach helps students to organise information and commit it to long-term memory, improve retention and recall, and apply knowledge successfully with extensive exam-style practice. It's everything students need to study effectively and fully prepare for their exams, in one convenient book. Each paperback purchased includes free access to an ebook version of the title. Details on how to access it are printed inside the book. Answers will be available online at oxfordrevise.com/scienceanswers.