People are unique in more ways than we can see. Stomachs and other internal organs come in many different shapes and sizes. Digestive juices, too, can vary dramatically from one person to another. Thus, according to author William Linz Wolcott, founder of Healthexcel, a company that provides metabolic typing for individuals, it stands to reason that different foods have very different effects on different people...

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...

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 .