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59 minutes/Grades 7-12
Subtitle: PERSPECTIVES IN SCIENCE, videodisc series
201 minutes/Grades 7-12
Produced by the National Film Board of Canada/Series producer
Julie Stanfel
This program includes an examination of freshwater ecosystems,
the effects of damming and diversion, a resource management tool
used to establish limits for the amount of phosphorus loaded into
water, and scientific responsibilities for maintaining healthy
ecosystems. Students also learn what dams are for and how they are
built. And they gain an understanding of the responsibility of
engineers in resolving environmental problems. With Guide
Subject Areas: EARTH SCIENCE, STS, SOCIETY, ENGINEERING,
ENVIRONMENT, WATER, RESOURCE MANAGEMENT, DAMS
CLV Videodisc ISBN: 0-7722-0266-4 VHS ISBN: 0-7722-0260-5
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Call TOLL FREE (800) 543-FROG (3764)
or FAX (610) 370-1978Bullfrog Films
Box 149, Oley PA 19547
(610) 779-8226
E-Mail: bullfrog@igc.apc.org