From LHS SciWiki
Science Olympiad is a team based competition in which students work in groups to compete in 23 STEM-related events. Each team is made up of 15 students and each student is typically responsible for 3-4 events. Events rotate every few years and vary across many fields of science, including biology, chemistry, earth science, mathematics, physics, and engineering.
LHS runs an annual science olympiad invitational, LexSO.