KS2 Science Important Bits by CGP Books
This book gives a summary of all the key topics covered in KS2 Science. It has clear, quick explanations with lots of pictures to make things simple and easy to understand. This book is excellent for an overview of KS2 Science in preparation for testing or for a child that finds science difficult. For more in depth coverage of KS2 Science topics there is a CGP study book (9781841462509).