Book excerpt: New editions support Cambridge IGCSE Combined Science and IGCSE Co-ordinated Sciences for examination from 2025. This print and digital coursebook has been developed from extensive research through lesson observations, interviews, and work with the Cambridge Panel, our online research community. This accessible resource is written in clear English with features to support English as a second language learners. Activities develop students' essential science skills, while practice questions and self-assessment and reflection opportunities build student confidence. Projects provide opportunities for assessment for learning and cross-curricular learning as well as developing skills for life. Answers are available to teachers via Cambridge GO.