National Geographic supports K-12 educators with ELA Common Core Resources.
Visit www.natgeoed.org/commoncore for more information.
This book is part of a book series called National Geographic Investigates .
There are 64 pages in this book. This book was published 2007 by National Geographic Society .
Tim Cooke is the author of National Geographic's Ancient Aztecs: Archaeology Unlocks the Secrets of Mexico's Past and Concise History of World Religions: An Illustrated Time Line .
This book is in the following series: