Categories Uncategorized Xiaoyan served as a Category Judge at the 2023 Fairfax County Regional Science and Engineering Fair Post author By Xiaoyan Tan Post date March 18, 2023 Xiaoyan served as a Category Judge at the 2023 Fairfax County Regional Science and Engineering Fair, which is hosted at James W Robinson, Jr. Secondary School. ← Prof. Julia Chan is visiting solid state chemistry and physics crew at GMU → Undergraduate student Rachelle DeLeon Joined the group. Rachelle, Welcome!