Explains the properties of light which make variations in color possible and suggests projects and experiments to demonstrate such principles.

Describes the properties of water and relates how we make use of water in our everyday activities. Includes experiments.

Experiments and activities present the properties of light and demonstrate how it can be bent, reflected in a mirror, and used to make shadows, rainbows, and moving pictures.

Provides an introduction to the animal kingdom, explaining the difference between vertebrates and invertebrates, and featuring descriptions and examples of animals in each of the kingdom's largest groups, including insects, fish, amphibians, reptiles, birds, and mammals.

Presents an introduction to tractors, in simple text with illustrations, providing vocabulary words related to the work that tractors and related machines do.

Presents an introduction to the human body, in simple text with illustrations, providing information on muscles, the mouth, tongue, ears, hygiene, and sleep.

This book introduces sunlight and manmade light sources, explains the making of a shadow, and tells the story of four cousins who used shadows to put on a show.

Presents a short study of magnets that describes the various kinds of magnets and what they do, how magnets attract, electromagnets, and more, and includes a short story about how Billy and his friends use magnets.

Presents an introduction to flowers in simple text with illustrations, providing information on their roots, stems, flowers, seeds, and more.