This revision guide summarises clearly and concisely all the science you need up to and including Year 9, with sections on Life Processes, Materials and Physical Processes. And it's great for learning because it explains everything in an entertaining and accessible format (check out the cold polar bear and the elephant in stilettos!). Our children have worked steadily through it preparing for exams, and the pages are getting dog-eared. Conclusion: a comprehensive and well-written guide to KS3 Science. Wish we'd had books like this when I was at school.