Eliza Harris, a slave whose child is to be sold, escapes her beloved home on the Shelby plantation in Kentucky and heads North, eludes the hired slave catchers and is aided by the underground railroad. Another slave, Uncle Tom, is sent "down the river" for sale and ultimately endures a martyr's death under the whips of Simon Legree's overseers.

Describes some of the scientific principles behind many actionsand events in sports.

Suggests experiments and projects to demonstrate the properties of air and the mechanics of flight by such objects as airplanes, balloons, and kites.

Relates the causes, events, and aftermath of the witchcraft trials which took place in Salem, Massachusetts, in the early 1690'sand resulted in the deaths of more than nineteen people.

Discusses how alcohol affects the body and the lives of both alcoholics and those closest to them.

Explains how visual perceptions are processed and suggests how illusions can be produced with images and graphics.

Discusses the formation and possible behavior of black holes andwhy we believe that they exist.

Describes the conditions and varying degrees of hearing loss and deafness, and discusses methods by which the hearing-impaired can communicate with others.

Describes the legal setting of custody disputes and discusses how the rights and obligations of parents and children vary underdifferent circumstances.