Key Notice

Registration is now open for 2020-2021 academic year! Classes will be held online until further notice. More information about each area is on each chapter's page.

Blog (7/8/2019)

SI teachers Yuchen Li and Arpit Ranasaria qualify for International Earth Science Olympiad 2019

https://www.useso.org/2019/07/08/congratulations-to-the-13th-ieso-team-usa/