Cómo funcionan los ecosistemas

Teach students about the years of change and reform between World War I and World War II. With this Spanish-translated book, readers will learn about events such as the Harlem Renaissance, suffrage, the stock market crash on "Black Tuesday," and the Great Depression. Primary source documents and images, and other engaging features, aid students in understanding the social studies content.

Describes how the rig was built, how it stands out in the water, and how much drilling it does in a day.

A biography discussing the life story of explorer Matthew Henson and his expedition to the North Pole with Robert Peary. Written in graphic-novel format.

Discusses the discovery and escavation of King Tutankhamen's tomb and the myth of the curse that seemed to afflict those involved in the tomb's exploration.