Science Olympiad
- The official Web Site of The National Science Olympiad Committee. Contains the latest official information available.
- http://www.soinc.org/

Siemens Westinghouse Science and Technology Competition
- National research competition in the sciences and mathematics for high school students. It awards one million dollars in scholarships, annually.
- http://www.siemens-foundation.org/competition/

Science Competitions
- NSTA position statement.
- http://www.nsta.org/positionstatement&psid=3

Science Fair Projects
- A list of science fair links, a review of science fair books, and some suggestions for science fair projects.
- http://www.jimloy.com/science/sfair.htm

Science Fair Videos
- offering a number of science fair and invention videos for use at elementary, middle and high schools the site also provides a comprehensive list of science fair resources.
- http://sciencevideos.com/products/fair/fair.html

Discovery Channel: Science Fair Central
- Separate science fair guides for students, teachers, and parents.
- http://school.discovery.com/sciencefaircentral/

Intel Science Talent Search
- Formerly Westinghouse Science Talent Search. Continuously operated by Science Service, Inc.
- http://www.sciserv.org/sts/

Intel International Science and Engineering Fair
- ISEF provides worldwide competitive scholarships, tuition grants, internships, scientific field trips. Winner attends Nobel ceremony.
- http://www.sciserv.org/isef/

iScienceProject
- Science projects, contests and competitions using HOBO data loggers for teachers and their students in grades 5-12.
- http://www.iscienceproject.com/