Describes the general characteristics of comets and gives a brief history of Halley's comet discussing its expected reappearance in late 1985-early 1986.

Presents experiments which demonstrate the properties of water.

Discusses events that led to the founding of the Thirteen Colonies.

Highlights the history and some of the political and social traditions of the Mohawk tribe and Iroquois confederation.

A simple introduction to choosing and caring for a pet dog.

Introduces the origins, causes, and destructive effects of earthquakes.

Provides an online resource describing the creation and ratification of the Bill of Rights, explains what rights are, and discusses the rights it guarantees, such as freedom of speech. Contains a related video, images, Web links, and text.

Uses illustrations, photographs and a map to help present facts and information about the Congress of the United States and how it functions.

Discusses the circumstances preceding and following the writing of the Declaration of Independence, the men who wrote and signed it, and the document's importance to United States history.