National Science Foundation

http://www.nsf.gov/

Science: Multnomah County Library Homework Center

http://multcolib.org/homework/scihc.html

Science News Online

http://www.sciencenews.org/

Science & Technology: Internet Public Library

http://www.ipl.org/div/subject/browse/sci00.00.00/

National Aeronautics and Space Administration (NASA)

http://www.nasa.gov/

Resources are also available in the BCCLS databases. Go to :
http://www.bccls.org/databases/log-in.shtml
Enter Library card number, select 'Subjects' heading and refer to links under 'Science'