This book is part of a book series called Perspectives Library .

This book has been graded for interest at 9-13 years.

There are 32 pages in this book. This book was published 2014 by Cherry Lake Publishing .

Roberta Baxter writes about science and history for students of all ages. She studied chemistry in college, but also enjoys learning about historical events and people. Her books include The Reactions of Metals, The Home Front in the North and The Home Front in the South. She lives in Colorado Springs, Colorado.