Central Western Oregon Science Expo (CWOSE) 2027

Date: Saturday, February 27, 2027
Venue: University of Oregon (in person), Eugene, Oregon
Format: In-person science and engineering fair for middle and high school students
Official page: https://nwse.org/cwose/
Organizer network: Northwest Science Expo System (NWSES)

About

CWOSE is the Science and Engineering Fair for the Willamette Valley and surrounding counties. Middle school (grades 5–8) and high school (grades 9–12) students engage in asking questions, conducting experiments, collecting data, drawing conclusions, and communicating their work. Projects are judged by science teachers, university faculty, and practicing scientists. Significant prizes are awarded, including scholarships to Oregon State University and the University of Oregon for high school winners.

CWOSE started in 2004 by David Hackleman (Oregon State University engineer) and is part of the larger state and national science-fair system.

Next future edition (day-level)

Verified 2026-09-30 Asia/Shanghai against the official NWSE CWOSE page:

• Hosted by University of Oregon on Saturday, February 27, 2027
• Site FAQ: “The next CWOSE will take place on Saturday, February 27th.”
• Venue: “CWOSE 2027 is currently planned to be an in-person fair at the University of Oregon open to both middle school and high school students.” Fair locations alternate between UO and other campuses.
• Project online submission deadline: Wednesday, February 10, 2027 (end of day)

No specific 2027 building or street address is stated on the official page; this listing uses University of Oregon / Eugene only and does not invent a hall.

Eligibility

High school (9–12) and middle school (5–8) students in Oregon counties: Yamhill, Marion, Linn, Benton, Tillamook, Polk, Lane, Lincoln, Douglas, Coos, Curry, Josephine, and Jackson.

Registration (as stated on site)

• Adult Sponsor adds each student project via the online Registration link on nwse.org/cwose/
• Mail registration fee ($15 per project; check to “PSU Foundation” or Donate Today with registration fee in notes) and School Registration Form (form not needed if paying online) to: NWSES – CWOSE, P.O Box 311, Banks, OR 97106
• Rules and required documents differ for middle school and high school; see Instructions / Requirements tabs on the official site

Contact

• Dr. Michael Rockow, CWOSE Director — Leslie Middle School, Salem, Oregon — Rockow_Michael@salkeiz.k12.or.us

CMS correction

The prior CMS listing used title “News | Mathematics | Natural Sciences” and websiteUrl https://naturalsciences.uoregon.edu/mathematics/contact-us/news (UO Mathematics news hub, not the fair page) with span 2025-02-28 / 2026-06-24. That URL is not the CWOSE event page. This upsert remaps websiteUrl/sourceUrl to the official organizer page and replaces dates with the next future day-level edition above. Legacy slug left unchanged.

Sources

• https://nwse.org/cwose/ (official CWOSE page: 2027-02-27, University of Oregon)
• Prior CMS websiteUrl (wrong_site news hub, not used for dates): https://naturalsciences.uoregon.edu/mathematics/contact-us/news