Eyewitness Science Life (Collins eyewitness science)

Science is all around and can be an endless source of discovery and wonder. Yet, for many people it conjures up thoughts of obscure laws and formulae. For them, this series of references should be practical and fun. From the earliest scientific investigations to current theories, this text creates actual experiments that were landmarks in the history of life on Earth, together with easy-to-follow demonstrations that make them accessible to all ages. It looks at the characteristics of all living things, then goes in closer to study the building blocks of cells and chemicals that control organisms. And it looks at the most difficult question of all - how life began and whether there is life beyond our own universe.