Hoërskool Carletonville (Callies) is celebrating the remarkable scientific achievements of Grade 9 learner Tumelo Mpiti following her standout performance at the Eskom Expo for Young Scientists 2026. Image: Hoërskool Carletonville Her innovative research earned top honors at the competition, showcasing exceptional academic talent and dedication to the sciences. Prestigious Awards & Recognition Mpiti secured two major accolades for her scientific research project: Gold Medal: