This is number 9 in Cool Science .

There are 48 pages in this book. This book was published 2008 by Lerner Publishing Group .

Sally M. Walker is the author of the ALA Notable Blizzard of Glass: The Halifax Explosion of 1917 . She is also the author of Written in Bone , Fossil Fish Found Alive , and Secrets of a Civil War Submarine , which was awarded a Sibert Medal. She lives in Illinois.