AP Images offers photographs, audio sound bites, video, and graphics capturing the greatest events in world history. 

Discover reliable and trusted information on a variety of topics to support middle school student research for government, U.S and world history, geography, literature, sciences, and social issues.  Research In Context offers cross-curricular content aligned to national and state standards, …

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Science Reference Center is a comprehensive POWER Library research database that provides easy access to a multitude of full-text science-oriented content. It contains full text for hundreds of science encyclopedias, reference books, periodicals, and other sources.