Gallant, Roy A

Describes the composition of minerals, their physical properties, and how they are formed.

Discusses the many different life forms that have existed on Earth, their importance, and how they have changed over time.

Examines the formation, size, rocks and minerals, crust, mantle, climate, oceans, and other features of planet Earth.

Discusses climate and explores reasons for changes in climate, including sunspots, cosmic dust clouds, and man-made factors. Analyzes the economic, social, and political effects of these changes.

Text, photographs, paintings, and maps explore the history of astronomy, the solar system, the universe, and new space discoveries.

Discusses the major classes of stars and describes how they are created, how they change, and what eventually happens to them.

Describes the various ice age periods throughout history and prehistory and explains how and why they occur.

Traces the development of mammal species, including human beings, during the Cenozoic era.

An introduction to astronomy using questions actually asked by children at the Southworth Planetarium in Maine.