- World-Wide Web Virtual Library: Science Fairs
- International, national, regional, local and virtual science fairs. - Discovery Channel: Science Fair Central - Separate science fair guides for students, teachers, and parents.
- Intel International Science and Engineering Fair - ISEF provides worldwide competitive scholarships, tuition grants, internships, scientific field trips. Winner attends Nobel ceremony.
- Intel Science Talent Search - Formerly Westinghouse Science Talent Search. Continuously operated by Science Service, Inc.
- iScienceProject - Science projects, contests and competitions using HOBO data loggers for teachers and their students in grades 5-12.
- Science Competitions - NSTA position statement.
- Science Fair Projects - A list of science fair links, a review of science fair books, and some suggestions for science fair projects.
- 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.
- Science Olympiad - The official Web Site of The National Science Olympiad Committee. Contains the latest official information available.
- 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.
