This book has been graded for interest at 9-14 years.

There are 80 pages in this book. This book was published 2016 by Kingfisher .

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. Barbara Taylor is an experienced children's non-fiction writer. Her previous books for Watts include the Science Starters series.