Describes the origins, characteristics, and future of the sun, planets, moons, asteroids, meteoroids, and comets.

Introduces the facts about volcanoes, what they are, why and how they erupt, different types of volcanoes found around the world, and the effects of some famous eruptions of the twentieth century.

Explains, in simple terms, the characteristics of volcanoes and describes some famous eruptions and their aftermath.

An introduction to the physical characteristics and behavior of various kinds of sharks.

Discusses what knights wore and where they lived a thousand years ago in Europe.

Discusses the different kinds of bats, where they live, and what they eat.

Describes the moon and its relationship to Earth.

Provides an easy-to-read overview of the history of aircraft.

Explains new discoveries about the universe made possible by the Hubble Telescope.