For the millions who remain curious about the world around them, but gained little from science at school, this book offers a way forward. Based on live discussions with adults from all walks of life, each chapter begins with an everyday experience, like swallowing a pill or watching a bee on a flower. The main scientific ideas underlying each topic are then explored, so that understanding of a set of fundamental concepts builds up gradually throughout the book. In contrast to more traditional approaches to science learning, topics range freely across the subject areas. The story of Covid, for example includes aspects of biology, chemistry, mathematics and social behaviour. Plain English is used throughout and mathematical expressions are avoided. Key points are illustrated with clear diagrams and photographs. By drawing on questions and perspectives of ordinary people, the book offers an introduction to basic ideas in science as a whole, rather than any one particular subject. For the adult wishing to make good a gap in their understanding it provides a starting point for entering the rich world of popular science.