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Searched for: GEM Subject is Social studies -- Geography
Results 641 - 645 of 663
Created by Lang Moore, Bill Mueller and David Smith for the Connected Curriculum Project, the purpose of this module is to establish the meanings of gradient and directional derivative in the context of a contour map of...
Created by Lang Moore and David Smith for the Connected Curriculum Project, this is a module to study the historical data on human population growth, and to compare the "natural" and "coalition" differential equation...
Wetlands went through a hard time in the 19th and much of the 20th centuries as they were summarily drained and used for real estate development. Today, scientists, planners, and recreationists are well aware of the...
The St. Lawrence Seaway connects the Atlantic Ocean to the Great Lakes, and it was completed in 1959. This website details the activities of the Seaway System, and visitors with an interest in transportation and public...
Created by the National Aeronautics and Space Administration (NASA), the purpose of this site is to provide a place where the public can obtain new satellite imagery and scientific information about our home planet. The...
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