Science competitions for high school students

Science competitions range from knowledge contests like science bowls and olympiads to research fairs where you present your own project. Biology, chemistry, physics, earth science and environmental science each have their own events.

Fair-style competitions reward a long project, so they suit students already doing research. Knowledge contests reward study and practice exams, and often run through school or regional teams.

At a glance

HSO lists 246 science competitions. Of those, 58 are free, 2 pay a stipend or award and 186 charge tuition or a fee. 21 run fully online.

90 of the 246 science competitions have a confirmed deadline on HSO, and most of those fall in November, January and March.

244 accept 9th graders and 245 are open to seniors. Every listing links to the official page, where the final word on eligibility and dates always is.

Programs (246)

Frequently asked questions

How many science competitions does HSO list?

246. Each listing shows the cost, grades and location, the deadline when one is posted, and a link to the official page.

Are there free science competitions?

Yes. 58 of the 246 are free, and 2 pay a stipend or award.

When are science competitions deadlines?

90 of the 246 science competitions have a confirmed deadline on HSO, and most of those fall in November, January and March.

Can 9th graders apply to science competitions?

244 of the 246 accept 9th graders, and 245 accept seniors. Grade rules vary by program, so confirm on the official page.

More academic competitions for high school students

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