'What Happened to the Dinosaurs' investigates why these huge creatures disappeared. The important question, 'How do we know they existed?' is answered with a clear timeline of images. Various theories are suggested, which support knowledge and understanding of climate change, volcanoes, asteroids and evolution of the animals which did survive.•Topaz/ Band 13 books offer longer and more demanding reads for children to investigate and evaluate.• Text type - An information book.• The response page summarises the main theories and could support a presented talk.• Curriculum links - Science: Living things in their environment.• This book has been quizzed for Accelerated Reader