Examines the history of military planes in the U.S. armed forces, describes their characteristics, looks at different types of planes, and discusses how they are used, their pilots, and their future.
Examines the history of helicopters in the U.S. military, describes their characteristics, looks at different types of helicopters, and discusses how they are used, their crews, and their future.
An introduction to rivers, explaining what they are and how they form, looking at river plants and animals, discussing how weather and people affect rivers, and describing the Mississippi and Amazon rivers.
Discusses how the oceans formed, what kinds of plants and animals live in oceans, and how oceans are changed by people and weather, and describes the Pacific and Atlantic. Includes a glossary and further reading list.
An introduction to deserts, explaining what they are and how they form, looking at desert plants and animals, discussing how weather and people affect desert environments, and describing the Sonoran and Sahara deserts.
Examines the history of military tanks in the U.S. armed forces, describes their characteristics, looks at different types of tanks, and discusses how they are used, their crews, and their future.
Examines the history of armored vehicles in the U.S. military, describes their characteristics, looks at different types of armored vehicles, and discusses how they are used, their crews, and their future.
