This is the pilot version of a particle physics course for high-school students – a research-based product of CERN’s Physics Education Research team. It contains 16 chapters with videos and quizzes and covers a core curriculum that introduces you to fundamental questions, such as “What is a particle?” or “What are charges and interactions?”, leading to more applied questions, such as “What is a particle accelerator?” and “What is a particle detector?” … you just need to create a CERN guest account.