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Environmental and natural resource competition for high school teams covering Aquatic Ecology, Forestry, Soils/Land Use, Wildlife and Current Environmental Issues, plus an oral presentation. Top team from each state or province advances to nationals.

International competition for students ages 15-20 who develop innovative research projects on major water challenges, with national competitions in about 40 countries and a finalist ceremony at World Water Week.

Academic competition for students interested in astronaut training and space science, with a Mercury Division for new teams and an Apollo Division. Includes an online qualifying test and coach training in Tallahassee.

Online poster design competition for U.S. middle and high school students in three categories: Agriculture and Food Science, Human and Animal Health, and Platform Tools and Technologies. Winners are invited to a UC Davis symposium.

Team robotics competition where two alliances of two teams each play the 2026-2027 game Override, with a 15-second autonomous period and 1:45 of driver control on a 12 by 12 foot field.

Regional symposium where students present original STEM research to judges at a university; scholarships and recognition available.

Scholarship and paid internship program for graduating seniors planning to study computer science in college.

Two 25-question, 75-minute math contests that are the first step toward the AIME, USA(J)MO, and the U.S. team for the International Mathematical Olympiad.

Annual challenge where middle- and high-school students create software apps for mobile, tablet, or computer devices to encourage participation in STEM; winners are chosen by each participating congressional district.

Career and business student organization that prepares emerging leaders and entrepreneurs for careers in marketing, finance, hospitality, and management through school chapters and competitions.

Largest student business organization, offering high-school students membership, education programs, competitive events, and scholarships through school chapters.

Teams of high-school students design, program, and build industrial-sized robots to compete in a themed game as part of a three-team alliance, with adult mentors.

STEM competition where high-school students perform original research, present findings, and compete for scholarships and opportunities through regional symposia.

Year-long history research competition where students create papers, exhibits, documentaries, websites, or performances; work advances from local to state to national contests. 2027 theme: Innovation in History: Impact, Influence, Change.

Largest speech and debate organization in the United States, supporting interscholastic tournaments, schools, coaches, and students since 1925.

Free statewide mock trial competition where student teams argue a civil case in front of volunteer attorneys and judges. The 2026-27 case involves an accident with a self-driving car. Teams must be registered by a teacher-coach.

Double-elimination, quick-recall science contest covering chemistry, biology, physics, astronomy, math, and general and earth sciences; the top team wins an expense-paid trip to the National Science Bowl in Washington, DC.

Contest in which high-school students solve linguistic problems to learn about the diversity and consistency of language while exercising logic skills; no linguistics background required.

Essay contest asking U.S. high-school students to write about an act of political courage by a U.S. elected official, with first place winning $10,000.

Online team mathematics competition for middle- and high-school students.

World's largest pre-college science fair, where more than 1,700 young scientists, engineers, and inventors compete across 22 categories for more than $7 million in awards, prizes, and scholarships.

The nation's oldest and most prestigious science research competition for high-school seniors, recognizing original research; 40 finalists compete during Finals Week in Washington, DC, for a share of $3.1 million in annual awards.

Leading team STEM competition in the nation with 7,000 teams at 450 tournaments in all 50 states; Division C is for high-school students.

Online investing simulation where participants use a virtual $100,000 portfolio to research real stocks, bonds, and mutual funds and track how market events influence results.