Teach your class everything they need to know about energy, including sources of energy, current applications, environmental concerns and more! Students enjoy this lively and very informative presentation that is expertly written to national standards .

Customize Your Diet to Your Own Unique Body ChemistryFor hereditary reasons, your metabolism is unique. Cutting-edge research shows that no single diet works well for everyone–the very same foods that keep your best friend slim may keep you overweight and feeling unhealthy and fatigued. Now, William Wolcott, a pioneer in the field of metabolic research, has developed a revolutionary weight-loss program that allows you to identify your "metabolic type" and create a diet that suits your individual nutritional needs...

Conceptual Physical Science, 4/e takes learning physical science to a new level by combining Hewitt's leading conceptual approach with a friendly writing style, stronger integration of the sciences, more quantitative coverage, and a wealth of media resources to help readers. This engaging book provides a conceptual overview of basic, essential topics in physics, chemistry, earth science, and astronomy with optional quantitative analyses...

Curiosity stirs the soul of every human. Who has not wondered about how the human body works? Can a person drink too much water? How does gravity make things fall? Why do sunflowers always face the sun. What about a man flying with wings? How big would those wings have to be? How tall can a human grow? Why are tennis balls fuzzy? What happens to the white when snow melts? What does Einstein's famous equation really mean? Why can't we invent a time machine? Do aliens live among us? What is heavy water? Why is it quiet after a snowfall? Why do dogs drool? How risky is driving a car? Mysteries lurk in our house, our body, the outdoors, in the heavens, and the universe...