Explore the world of

Examines how mountains form, why volcanoes erupt, glaciers flow, how the Grand Canyon formed, and how other general forces of nature occur.

Briefly discusses prehistoric animals such as early reptiles, dinosaurs, meat eaters, plant eaters, birds and early mammals.

Discusses the Horsehead nebula, the Milky Way galaxy, the solar system, the sun, stars, how the universe began, comets, auroras, telescopes, and space travel.

Describes the ocean floor and examines warm-water vents, where oil comes from, what happens when ships sink, underwater exploration, and ocean life.