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Freshwater, Seawater



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Item Number:
DCS DC847152
Price:
$59.95
Format:
DVD
Length:
55 min.
Copyright:
2004
Closed Caption:
Yes
Producer:
Discovery Channel School
Grade Level:
6 - 8
ISBN:
1595271414
Summary:
Water takes many forms and has many functions on our planet. Segments cover the science of waves, the adaptations of animals in aquatic habitats, and the desalination of seawater. WAVES OF DESTRUCTION: Looks at the characteristics of ocean waves including tsunamis, the high-energy waves that can grow so destructive. FRESHWATER HABITATS: Shows the remarkable adaptations of animals in an East Asian environment that continually freezes and thaws. FIT TO DRINK: Delves into the difference between pure substances and mixtures, and demonstrates how reverse osmosis can create fresh drinking water from seawater. This episode helps students understand the chemical and physical properties of a substance that is crucial to life on Earth.

Only available in the US.




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