• Orange County Science and Engineering Fair
    • Orange County Science and Engineering Fair
    • Orange County Science and Engineering Fair
    • Orange County Science and Engineering Fair
    • Orange County Science and Engineering Fair

News & Events

OCSEF Ask-a-Scientist Nights
OCSEF Ask-a-Scientist Nights

OCSEF, OC Science, and THINK Together hosted four successful Ask-a-Scientist Nights in school across Orange County.

2016 Excellence in STEM Award Ceremony
2016 Excellence in STEM Award Ceremony

At the 2016 annual Excellence in STEM Awards ceremony, teachers, volunteers, board members, judges, and special judges received awards for their excellence.

Jan and Richard Cannon 1964
Jan and Richard Cannon 1964

Jan and Richard Cannon met at OCSEF in 1964 as fellow competitors. Little did they know that they would end up happily married in the years to follow. 

  • The Orange County Science and Engineering Fair (OCSEF) is a nonprofit educational organization that has promoted science and engineering in Orange County since 1955. The educators, scientists, and engineers who volunteer their services are committed to educating, guiding, and motivating students to engage in project-based learning in all fields of science, technology, engineering, and mathematics (STEM) to be college and career ready in the 21st century. 

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2018 OCSEF Information
2018 OCSEF Information

Thinking of participating in the 2018 Orange County Science and Engineering Fair? Register or find out more information here!

Free Science Fair Resources
Free Science Fair Resources

Advice for conducting a science fair project, information for various science summer camps, links to science fair competitions, and more!

2015 OC Fair Imaginology
2015 OC Fair Imaginology

The OC Imaginology Fair is a great opportunity to showcase your talents in individual and group project competitions in a variety of subjects including Science, Technology, Engineering, Arts and Math!

2016 Broadcom MASTERS Semifinalists
2016 Broadcom MASTERS Semifinalists

Of the 300 students chosen as Broadcom MASTERS semifinalists from across the nation, nine elementary and middle school students from OCSEF qualified. 

2016 California State Science Fair Winners
2016 California State Science Fair Winners

A total of 32 Orange County students from grades 6-12 won awards at the 65th annual California State Science Fair held on May 23-24.

2016 Intel ISEF Finalists Selected
2016 Intel ISEF Finalists Selected

Four high school students were selected to represent Orange County at the 2016 Intel International Science & Engineering Fair.

Pranav Moudgalya, a 6th grader at Turtle Rock Elementary School, and his partner Michael McPhie devised a project titled “Extraordinary Elodea: A Look into the World of Pollution.” With this project, they qualified for Broadcom Masters and competed at the California State Science Fair

 

With pollutants such as carbon dioxide steadily rising, they “decided to address the harmful and detrimental effects of acidic rain on a plant called Elodea anacharis.” Plants produce the vital oxygen that we need to survive, so “measuring the effects of pollution on [plants] would greater prove and educate people about the dangers of ecological breakdown.”

 

After over a month of research, they devised two methods to measure the rate of oxygen production in Elodea when watered with “rain” of different pHs. However, throughout their research, they struggled with finding a way to manually measure oxygen. “[They] had to get creative!]” Luckily, they overcame this problem and after two days of strenuous experimentation, they concluded that Elodea produces the most oxygen in water with a pH of 6, second most in 9, and the least in water with a pH of 3.

 

Pranav really loves science fair because he is able to have “positive learning experience where [he] connects with other people who share similar interests.” Though working with the hard sciences, Pranav is still able to use creativity, create lasting friendships, and acquire skills he needs for the rest of his life. He looks forward to participating in science fair again next year.

 

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