Arkansas's statewide high-school mock trial competition, run by the Arkansas Bar Association: school teams argue an original case as attorneys and witnesses, advancing from local rounds to the state finals; the state champion represents Arkansas at the National High School Mock Trial Championship.
The Massachusetts state championship of Science Olympiad for high school (Division C) teams, held March 20, 2027 at Framingham State University (snow date March 21); top teams can advance to the national tournament.
Utah Educators Rising's 2027 state event where high-school members compete in teaching-profession competitions (lesson planning, children's literature, ethical dilemma, public speaking and more) and attend leadership sessions; top finishers can qualify for the national Educators Rising event.
Illinois HOSA's 2027 state conference where high school members compete in health science competitive events (health knowledge, clinical skills, emergency preparedness, leadership) and attend leadership workshops; top finishers can qualify for the HOSA national conference.
A residential outdoor adventure course from The Outward Bound Trust for ages 13-15, lasting 14 days (13 nights away, multi-day expeditions), with courses from 28 June 2027 and charity funding available.
Georgia's invitation-only state high-school math tournament, held in Macon on the last Saturday in April, with one four-person team per invited school.
A one-week residential olympiad-preparation camp at the Nesin Mathematics Village with eight hours a day of combinatorics, number theory, analysis and geometry problem solving.
Pennsylvania's statewide science fair for grades 7–12: regional meets January–early March, and qualifiers go to the State Meet at Penn State University Park, May 16–18, 2027.
The National Theatre's national youth theatre festival, open to school, youth theatre and voluntary-organisation companies of young people aged 13 to 19 to stage new plays on professional stages.
A free summer service-learning program at the Monterey Bay Aquarium where high schoolers build career skills, earn community service hours and support ocean conservation.
A team engineering and design challenge where students in Years 10–13 form a fictional company to design a space settlement in response to a Request for Proposal, with regional heats and a National Final.