This four-volume set presents an overview of earth science from the earliest observations of ancient peoples to discoveries of today's scientists. Earth science includes astronomy, geology, meteorology, and oceanography. The first volume, Words and Terms, defines important words in these sciences. The contributions made by such scientists as Galileo, Sir Edmund Hailey, and Florence Bascom are described in the second volume Important People, which highlights contributions made by women and minority groups to a traditionally male profession. Developments and Discoveries, the third volume, traces the history and development of this science, and the fourth, Debatable Issues, presents the most hotly debated topics today, such as space exploration and global warming.

Volume 1: Words and Terms

Volume 2: Important People

Volume 3: Developments and Discoveries

Volume 4: Debatable Issues

Grades 6-8

• 300 Photographs, maps, charts, and graphs
• Sidebars and fact boxes
• Primary documents
• Glossary
• Cumulative index in each volume