This site, part of Exploring Earth Investigation by McDougal Littell and TERC, examines how Earth's spheres are interacting. The investigations "were designed to build students' knowledge of Earth Science...
In this article, presented by HowStuffWorks.com, shows how a submarine dives and surfaces in the water. It also shows how life support is maintained, how the submarine gets its power, how a submarine finds its way in...
This page, from the National Center for Aircraft Technician Training (NCATT), presents a number of animations for the teaching and training of aircraft technicians at community and technical colleges, as well as...
This site, part of Exploring Earth Investigation by McDougal Littell and TERC, examines regional variation among Earth sphere interactions. The investigations "were designed to build students' knowledge of Earth...
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