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The Search for Clean Air
 This program presents a clear, forceful, and thorough exposition of the problems of air pollution: its causes; its effects on forests, streams, and human health; and the issues involved in correcting the problems. Narrated by Walter Cronkite, the pro...(more details) |
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$169.95 |
| DVD + 3-Year Streaming |
$254.93 |
| 3-Year Streaming |
$169.95 |
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The Amazing Mole
 The discovery of the mole and its relationship to mass, volume, concentration, and number of particles revolutionized science in its day. With stunning graphics and visual metaphors, this program introduces students to this fundamental concept in che...(more details) |
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| DVD (Chaptered) |
$149.95 |
| DVD + 3-Year Streaming |
$224.93 |
| 3-Year Streaming |
$149.95 |
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Functional Anatomy
 By their very nature, sports competitions push the human body to its limits. In this program, we examine four bodily systems-skeletal, muscular, respiratory, and circulatory-to demonstrate how our anatomy enables us to be physically active. Extensive...(more details) |
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| DVD |
$169.95 |
| DVD + 3-Year Streaming |
$254.93 |
| 3-Year Streaming |
$169.95 |
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Scientific Spin Doctors
 For centuries, people have counted on science to provide them with objective answers to questions about the world of nature. But on pressing environmental issues such as global warming and ozone depletion, some special interest groups are striving to...(more details) |
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$99.95 |
| DVD + 3-Year Streaming |
$149.93 |
| 3-Year Streaming |
$99.95 |
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Behind the Big Bang Theory
 This Science Screen Report demonstrates how the Big Bang is thought to have occurred, and examines principles scientists use to support the theory. Beginning with the establishment of the concept in 1948, the program guides students through the detec...(more details) |
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| DVD |
$49.95 |
| DVD + 3-Year Streaming |
$74.93 |
| 3-Year Streaming |
$49.95 |
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