This digital coursebook provides full coverage of the Cambridge IGCSE™ Marine Science syllabus. Engaging international case-studies of underwater ecosystems help students put theory into context. Activities and questions develop students’ essential skills of analysis, interpretation, application and evaluation. There are multiple opportunities to engage in active learning, from group work, research projects to discussion questions. The resource is written in clear, accessible language with glossary definitions and support with command words. Exam-style questions and regular self-assessment and peer-assessment features help build student confidence. Answers for all the questions and exercises can be found online at www.cambridge.org/go.