Second Round: American Invitational Mathematics Exam (AIME) — students take a 15-question exam where each answer is a number between 000 and 999 inclusive with 3 hours to complete the test
U.S. Department of Energy National Science Bowl - A 5-person team buzzer-based competition where students "buzz in" to answer science questions including Astronomy, Biology, Chemistry, Physics, Mathematics, Energy, and Geology.
National Ocean Sciences Bowl - hosted by Michigan Sea Grant, it focuses on math and science related to oceans and the Great Lakes.
Science Olympiad - A team-based event where schools compete against one another in "events" and students work in pairs in each event.