Start here for background information on most topics with the web version of the Encyclopaedia Britannica and links to vetted websites. With links to the World Atlas, Biographies, and more.
Search over 600 reference books along with images and concept mapping tools. Wide spectrum of science resources, with many handbooks and encyclopedias.
Gateway to authoritative information in all scientific disciplines. Full text of the latest edition of the McGraw Hill Encyclopedia of Science and Technology online, along with videos, animations and downloadable images.