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National Geographic - Science
National Geographic delivers videos, articles and other resources on a range of topics including the Human Body, Habitats and the Environment.
Encyclopedia of Earth
The Encyclopedia of Earth (EoE) is an electronic reference about the Earth, its natural environments, and their interaction with society. The EoE is a free, expert-reviewed collection of content contributed by scholars, professionals, educators, practitioners and other experts who collaborate and review each other's work. The content is presented in a style intended to be useful to students, educators, scholars, professionals, as well as to the general public.
Access resources, videos and information on a range of science topics.
"The BEST space and astronomy videos on the web. Watch stars explode and space-time rip at the seams in breaking stories about the universe."