Databases (call library for log in information)
Learning Express Library  - Whatever your goal, Learning Express Library's resources will help you succeed. Each of our Learning Centers offers the practice tests, exercises, skill-building courses, eBooks, and information you need to achieve the results you want—at school, at work, or in life.
Searchasaurus  - A kid-friendly interface to EBSCO resources for elementary school aged children.

Biography
Biographical Directory of the United States Congress: 1774-Present 
Biography.Com 

Geography, Government & History
America's Story 
Geography Quiz  
Kids in the House  of Representatives
Presidents Hall 
States Web Games 

Math
algebrahelp.com 
ArithmAttack 
Fact Monster 

Science

Reusing Plastic Bottles
Kids Health 
Bill Nye 
Endangered Species Database  
How Stuff Works 
National Geographic Virtual World: The Great Barrier Reef 
Ranger Rick's Kids Zone: Cool Tours 
Texas Wildflowers 
Today at NASA 
Volcano World 
Web Garden 
Zoom Dinosaurs 

Science Projects
informED: You and Your Science Fair Project 
Science Buddies 
Science Fair Project Ideas 

Typing
Typing Club 

Pets
American Veterinary Medical Association Presents: Care for Pets 
Cyber-Birdwatching: BirdSource 
House Rabbit Society 
Pet Loss Support Hotline 
Dog Training