Introduces teeth, describing how many we have at various stages of life, why they fall out, and what they do.

A description of sights and experiences on the surface of the moon, based on information gathered by astronauts.

On a visit to a natural history museum, a little boy sees fossilized skeletons of dinosaurs and learns what archaeologists have discovered about the physical appearance and habits of these huge, extinct creatures.

Describes how sunshine and the tilt of the earth's axis are responsible for the changing seasons.

A simple description of how corn was discovered and used by the Indians and how it came to be an important food throughout the world.

Briefly introduces various types of dinosaurs whose skeletons and reconstructions are seen in museums and explains how scientists uncover, preserve, and study fossilized dinosaur bones.

Describes the physical characteristics of a variety of snakes and how they hunt, catch, and eat their prey.