The seas and ocean cover three-quarters of our world. By viewing 3-dimensional computer scans, we can see and explore underwater features
Maps of the different regions of the world show their geographic, cultural, and economic features. Includes text describing the individual countries.
Discusses the people, traditions, folkways, holidays, family life, food, schools, sports, recreation, and history of Poland
A textbook tracing the history of the United States from the arrival of the first explorers to the present day