Best Selling Books by Rebecca L. Johnson

Takes readers on a journey into a lake, showing examples of how the animals and plants are connected and dependent on each other and on the lake''s freshwater environment.

Takes readers on a walk at a sheltered bay, showing examples of how the animals and plants of estuaries are connected and dependent on each other and the estuary''s mix of fresh and salt water.

Takes readers on a journey into the ocean, showing examples of how the animals and plants of the ocean are connected and dependent on each other and the ocean''s saltwater environment.

Offers information about nanotechnology, a new scientific field that involves moving individual atoms and molecules around to create things on an ultra-small scale.

Allocation of natural resources has become a prominent concern at the local, state, and federal level. Competing uses for increasingly scarce resources are requiring that the relative values of those uses be investigated. Although many types of value are important in decision making, this book is concerned with the economic value of natural resources. Economic values for certain natural resources are readily observable in markets. For others, however, market prices are not available, and estimates of value must be made through nonmarket valuation techniques. The progress that has been made in improving the theory, methods, and applications of these techniques has been remarkable. Along with the progress, however, come new problems that must be addressed. The chapters presented in this volume are a collection of examples of both progress and problems.

"Four students travel to dry, icy Antarctica to study the AdeÌ1lie penguins. They use all they have learned to make an important rescue by themselves"--Publisher''s website

Readers take an imaginary trip inside the body to learn what makes each person unique. Learn about chromosomes and genes and watch them at work.

Describes the physical characteristics and habitat of carnivorous plants, including pitcher plants, venus fly traps, and cobra lilies.

An illustrated compendium of information on plants and their diverse therapeutic properties and benefits brings together folklore, scientific research, and medical theory to describe hundreds of plants and their origins.--

Provides opportunities for students to develop and apply fundamental mathematical and scientific skills.

Discusses the greenhouse effect, research into its causes, and possible impact on our planet.

Describes the day-to-day experiences of several women who work as scientists, helicopter pilots, snowplow drivers, and doctors in Antarctica.

From headaches to sore feet, muscle cramps to melancholy: the remedies to many ailments can be found in the world of plants. In this guide, both botanists and medical experts explore the healing properties of herbs and other plants to reveal how they have been used in the past and how they can be used today. A resource organized by body system lists the key herbal remedies available, their uses, and cautionary advice, also includes full-color photos, a glossary and several thematic indexes.