Discusses how the use or trade of chocolate, tea, sugarcane, cotton, potatoes, corn, rubber, pepper, cinchona, and papyrus changed the course of history.
Explains the science behind different types of explosions, looks at some of the purposes of explosions, and includes fun facts, photographs, and a look at some historic blasts.
Machu Picchu is often called the Lost City of the Inca. Hidden by thick forest plants high in the Andes Mountains of South America, the Inca city lay abandoned for nearly 400 years.
Photographs, charts, and text introduce young readers to the basics of hiking; and offers advice on proper equipment and clothing, safety measures, and identifying wildlife along the trail.
Photographs and easy-to-follow text provide an introduction to mountain ecology, and describes the plants, animals, and people who live and survive in mountain environments.
Describes ecosystems and the problems they face and discusses links between ecosystems and the environment, society, careers, and technology. Also includes "challenge" activities.
Presents an introduction to the children's author, Dan Gutman, in simple text with photographs, providing information on his childhood, education, and how he became a writer.
