These lessons help students develop a better understanding of the importance of well-managed water use while exploring the concepts of a watershed, land use, aquifers, and water engineering. The material focuses on the...
This set of multimedia resources, produced for the NOVA television broadcast 'Mass Extinction', explains mass extinctions in general, and in particular the extinction event that occurred at the end of the Permian period...
The Panama Canal was quite an undertaking of labor and engineering, and by the time it was completed on August 15th, 1914 the project had been underway (in some form) for well over two decades. Along the way, over 55...
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