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YouTube is a place to discover, watch, upload and share videos.

NBC Learn is the education arm of NBC News. We are making the global resources of NBC News and the historic film and video archive available to teachers, students, schools and universities to drive college and career readiness, improve test scores an...

Free K-12 educational videos … organized. Tens of thousands of excellent, educational videos in a huge, intuitive directory. Organized, reviewed, rated, and described by teachers. Ideal as a supplement to a curriculum or for independent study. Desi...

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The University of Delaware, founded in 1743, offers over 100 academic majors; its distinguished faculty includes internationally known scientists, authors and teachers.

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Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...