This book is part of a book series called Scholastic Science Readers .

. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read.

There are 48 pages in this book. This book was published 2003 by Scholastic US .

Deborah Heiligman is the award-winning author of 15 children's books. She specializes in simplifying complex subjects for young people, particularly in the areas of science and social studies. She lives in New York City.