This book is part of a book series called Dk Eyewitness .
This book has been graded for interest at 8-12 years.
This book was published 2011 by DK Publishing (Dorling Kindersley) .
Dr Mike Goldsmith works at the UK's National Physical Laboratory. He has worked on a variety of science topics, including sound and space. He has written several books for children.
This book is in the following series: