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A Day in the Life of a Drop

(Complete Item Description)

Abstract:: A Day in the Life of a Drop is a set of activities designed to help students in grades 3-5 understand the connections between the source of the water they use and the ways their water use habits affect the environment and human health. Students also learn how to reduce their impacts and engage family members. After completing the worksheets provided, students and families take the Pledge to Filter Out Bad Water Habits to demonstrate their commitment to saving water for the future.

Subject:: Science and Technology
Grade Level:: Primary
SubTopics:: Water
Collection:: U.S. Environmental Protection Agency

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Frontiers of Knowledge: Biotechnology and Food Systems in Developing Countries

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Abstract:: The potential of biotechnology to improve the condition of human life in developing countries is gaining credence. Robert Timmer, Ph.D. discusses how biotechnology could impact the economies of developing countries in terms of raising agricultural production while bringing benefits to healthcare, industry and environment. (28 minutes)

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: UCTV Teacher's Pet

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Frontiers of Knowledge: Global Warming, Nation Under Siege

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Abstract:: The rapid depletion of fossil fuels and the rising sea level from the warming of the earthŐs atmosphere are converging to dramatically alter our future. Edward Mazria, founder of Architecture 2030, unveils a new study of sea level rise showing fly-over 3D images depicting potentially calamitous coastal and national impacts. (57 minutes)

Subject:: Science and Technology
Grade Level:: Secondary, Post-secondary
Collection:: UCTV Teacher's Pet

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Loss of sea otters, loss of kelp forests

(Complete Item Description)

Abstract:: Events that affect one population typically affect other populations. This phenomenon is demonstrated by the otter-urchin-kelp connection.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
SubTopics:: Industrial and Agricultural Impacts
Collection:: Video and Image Data Access

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Urchins and kelp

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Abstract:: The loss of lush kelp forests is attributed to the reduction in sea-otters by hunters. Clearly, reduction of otter populations affects urchin populations and also kelp populations.

Subject:: Science and Technology
Grade Level:: Primary, Secondary
SubTopics:: Plants and Forests
Collection:: Video and Image Data Access

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