This book provides a simple discussion of the sources and kinds of light, colors, and how eyes see.

This book provides a simple discussion of natural magnetic force, electromagnets, and magnetic fields.

This book describes the behavior of whales, with an emphasis on their hunting, communication, and travel.

This book provides a simple discussion of the different forms water takes, its importance to life on Earth, and some of its uses.

Presents a description of and background information about the trees that have been chosen to represent the fifty states and the District of Columbia.

An introduction to the characteristics of mushrooms, how and where they grow, the different species, and their uses.

Explore the Delta--its snaky channels of blackwater, the famous city of New Orleans, its people and wildlife.

The tallest redwoods have stood for over 2,000 years--resisting disease, insects, storms and fire.

Find out why the future may not be so bright for the plants and animals that live in this huge, wet wilderness in south Florida.