This series provides broad coverage of the Life Processes curriculum for Key Stage 3 Science. Each title presents detailed information on the main concepts and theories of each subject area. In addition, the books stress the key features of science at this level - scientific enquiry, use of ideas and evidence, planning, evaluation and investigation. These are easy-to-understand information books for use alongside difficult textbooks. This book contains information on the most recent developments and likely advances in future research. It is packed full of photographs and artwork to explain difficult subjects, and includes case studies of key experiments and discoveries.