Britannica Elementary
includes an encyclopedia, atlas, dictionary, timelines,  "this day in history," and more.

Britannica Learning Zone
is for pre-K to grade 2.

Grolier Kids  
includes encyclopedia, dictionary, atlas, New Book of Knowledge, Lands and Peoples, and America the Beautiful.  

Searchasaurus
helps students in grades K-3 to browse and search for content from the Primary Search database, which includes the full-text of the American Heritage Children's Dictionary, Funk & Wagnalls New World Encyclopedia, the EBSCO Encyclopedia of Animals, and dozens of kid-friendly magazines.

Kids InfoBits
is for elementary school students grades K-5, this database has articles from magazines, newspapers, and reference books on animals, famous people, science, countries and states, and more. 

Primary Search
includes full text for more than 70 popular, elementary school magazines, as well as encyclopedias and dictionaries written for kids, plus an image collection of photos, maps, and flags. All articles are assigned a reading level indicator (Lexiles).

Kids Search
includes magazine and reference book content from Primary Search, Middle Search Plus and Science Reference Center databases.

Learn360   (Student version--TEACHERS use the link in favorites.)
is a database of videos and audio clips that you can use in MovieMaker and PowerPoint.