Science Olympiad : Science Olympiad is an American elementary, middle, and high school team competition in which students compete in 'events' pertaining to various scientific disciplines, including earth science, biology, chemistry, physics, and engineering. Over 6,700 teams from 50 U.S. states compete each year. There are three levels of competition: regional, state, and national. In addition, some states or private groups offer 'invitational' tournaments which serve as practice for regional and state competitions. Teams which excel at the regional competitions advance to the state, and then to the national level.