Describes how magnets work and includes instructions for making a magnet and a compass.

Explains the phases of the moon--the changes that seem to happen to it as it goes around Earth.

Explains basic facts about the Big Dipper, including which stars make up the constellation, how its position changes in the sky, and how it points to the North Star.

Discusses some of the ideas and misconceptions about life in outer space and speculates on the existence of such life in light of recent space explorations.

An astronomical exploration of the Star of Bethlehem against a background of the Christmas story.

Describes snow's physical qualities and how quantities of it can be fun as well as dangerous.

Explains how the water cycle leads to different types of weather patterns.

Describes various scientific theories which explore the extinction of the dinosaurs.

Discusses some of the lesser-known astronomical phenomena such as meteorites, asteroids, tektites, zodiacal light, solar wind, and cosmic rays.

Describes the sightings of Halley's comet throughout history and how its movements were definitively charted by the astronomer whose name it bears. Also discusses the composition of comets and their relationship to the earth, other famous comets, and the return of Halley's comet in 1986.