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This is an online collection of over 950 titles with particular emphasis on subject encyclopedias, dictionaries, atlases, and reference handbooks as well as short reference videos, art images, and additional images across all subject areas. As subject coverage is diverse, this is a good place to begin a topic search before formal research.
This database provides biographies on inventors, scientists and engineers, diagrams for chemistry, geology, physics, weather and the universe, interactive experiments, timelines, and many videos and animations on multiple scientific topics.
This is a great place to obtain an overview on a specific topic in the science fields by using the Topics Centers or browsing topics A-Z or to see what science topics are in the current news.
Access Science contains non-scholarly articles and research reviews, dictionary and technical term definitions, biographies of well-known scientific individuals and animations illustrating key topics from the McGraw-Hill Encyclopedia of Science and Technology and the McGraw-Hill Yearbook of Science and Technology.
It is a good place to get an overview on a topic within the major scientific disciplines and link to primary research material and citable literature for continued research.