If you really want to make sure you know gcse biology, reading through your study notes just isn't enough - you'll need to test yourself. And that's where these cgp revision question cards come in! There are 95 cards in the pack, covering every key grade 9-1 edexcel topic. Each one starts off with quick questions to warm you up, followed by harder questions to get your brain into top gear. Flip the card over and you'll find full answers to each question, carefully written to help you understand everything you need to know. Along the way, we've packed in plenty of diagrams and expert revision tips, and there are even questions on working scientifically and practical skills.