Britannica SchoolAn integrated resource that not only provides articles by school level, but also links to newspaper and magazine articles, websites, primary resources, and e-books! Includes images, videos, and a dictionary.
Search tip: Start your search in Middle level 2. Go to levels 1 (Elementary) & 3 (High School) as needed.
Grolier Online includes eight different databases: Encyclopedia Americana, Grolier Multimedia Encyclopedia, The New Book of Knowledge, La Nueva Enciclopedia Cumbre, America the Beautiful, Lands and Peoples, Amazing Animals of the World, and The New Book of Popular Science.