GCSE Core Science OCR 21st Century Workbook - Foundation (A*-G Course) by CGP Books
This book is packed with practice questions for Foundation level GCSE Science students. It covers every year 10 topic for the OCR 21st Century exams with a range of exercises that test what you know and how well you can apply your knowledge. The answers come in a separate book (9781841466279). Matching study notes and explanations are also available in the CGP Revision Guide (9781841466255).