Shares the story of Peter Still, a boy left behind in slavery when his mother decided to flee north with her baby daughters in 1806; discussing how he was able to purchase his freedom after forty years in bondage, and telling about his risky attempts to win freedom for his wife and children.
Presents basic information about the stars, constellations, galaxies, universe, solar system, and the earth. Also discusses famous astronomers and space travel.
Examines the various forms of cancer, their possible causes, and treatments, and discusses who can get cancer and what is being done to prevent or cure it.
Discusses the causes and effects of drought, including the dust storms that devastated the Great Plains during the 1930's and other periods of disastrous drought and famine throughout history.