Encyclopedias: Sciences

Medline Plus Encyclopedia Produced by the US National Library of Medicine and the National Institutes of Health.

Medical Encyclopedia includes over 4,000 articles about diseases, tests, symptoms, injuries, and surgeries. It also contains an extensive library of medical photographs and illustrations.

EBSCO Animals Also called Encyclopedia of Animals, offers
in-depth, full text articles on the nature and habitat of animals.  This resource is maintained by UNT Libraries. You will be asked for you a username and password if accessing off campus. 

Encylopedia of Computational Chemistry  Contains over 300 reviewed articles.  This resource is maintained by UNT Libraries. You will be asked for you a username and password if accessing off campus. 

How Stuff Works   An award-winning searchable resource for anyone who wants to know how anything works. 

Ullman's Encyclopedia of Industrial Chemistry contains nearly 1000 full text articles written by experts.  This resource is maintained by UNT Libraries. You will be asked for you a username and password if accessing off campus.