This book is part of a book series called Puffin Science Easy-To-Read .

This book has been graded for interest at 5-8 years.

This book was published 1998 by Turtleback Books .

Emily Bolam studied at Brighton College of Art (1987-1990). She has illustrated many successful titles for Campbell Books. * Harriet Ziefert is a major force in children's publishing and has worked with some of the finest artists in the world. Her books are favourites with children, parents, teachers, librarians and booksellers.