Running almost the full length of South America on its western coast, the Andes is the longest continental mountain range in the world. This remote and harsh environment saw the rise and fall More →

The animals of Cozy Cages Zoo have had enough. They're sick of the treatment they get and tired of their lousy enclosures. When a careless zookeeper named Phil hits a seal in the face with a… More →

Who wants to work when it's nice outside? Grasshopper plays all summer long. But what's a bug to do when winter comes and all the food is gone? The hardworking ants spend their summer saving… More →

The Great Appalachian Valley, a major landform of the Appalachian mountains, played an important role in the early history of the United States. Routes through the valley, first made by… More →

How do Americans state what they believe in, how their representative government works, and more? By writing it down! Investigate great documents that have shaped United States history,… More →

Join our brain Body Buddy Cognos and learn all about how the brain and nervous system get things done. Young readers will discover the location of the major parts of the brain and gain… More →

Astronauts of the lunar exploration age were the superstars of their time. This inspiring book discusses how astronauts survived in space - then and now - by keeping to a strict diet,… More →

This fascinating book describes the geological makeup and history of the Atacama Desert in Chile. One of the driest areas of the world - some parts never receive any rain - the desert's… More →

"Victory or Death" - the famous and stirring words of William Barrett Travis were written in a letter from the Alamo to the people of Texas in February 1836. This and other brash and brave… More →

Before they spearheaded the musical phenomenon called "the British Invasion," John Lennon, Paul McCartney, George Harrison, and Ringo Starr were just four kids from Liverpool. Throughout the… More →