<p>The Cambridge Chemistry Challenge (C3L6) is an annual chemistry competition run by the University of Cambridge's Department of Chemistry and St Catharine's College. The paper is set by experienced teachers and university chemists and is designed to stretch students beyond the A-level syllabus, introducing university-style thinking.</p> <ul> <li>Designed to be accessible to Year 12 (Lower 6) students and below.</li> <li>Single 90-minute written paper sat under supervised conditions at a participating school.</li> <li>Certificates of achievement awarded across multiple tiers (Roentgenium, Gold, Silver, Copper).</li> <li>Top UK performers are invited to a residential camp at the University of Cambridge.</li> <li>In Asia the competition is administered by ASEEDER, with registration handled through participating schools.</li> </ul> <p>Schools register via the official C3L6 site, or through ASEEDER for Asian territories.</p>