A New true book

Describes the habits and behavior of the mountain lion, also known as a cougar, puma, and panther.

Briefly describes the earth's interior, the forces and stresses that sometimes cause the ground to shake, and the effects of such movement.

Describes the causes and effects of the greenhouse effect and how it might be stopped.

Introduces the leagues, rules, techniques, strategies, and types of soccer.

An introduction to various sources of energy, including wind, water, electricity, magnets, heat, and sunlight.

Describes the nature of the body's cells, protoplasm, tissues, organs, and systems, and explains how they work.

An overview of seabirds around the world and the special adaptations they make to their marine environment.

Presents basic information on heredity, discussing such topics as chromosomes, genes, and multiple births.

Describes the formation of the remarkable canyons in this national park in Arizona and discusses other things to see and do there.

Describes the characteristics and habits of a variety of insects and animals that live in the soil or in caves.