After a brief introductory talk on the history of cloud chambers, students are instructed in how to build their own particle detector. Then they observe the tracks of particles made visible by the chamber. The tutor goes from group to group to discuss the students' observations. The session concludes with a group discussion facilitated by the tutor and the lab clean-up. The sessions in S'Cool LAB last 75-90 minutes in total.
Safety: Students must follow the safety rules specified by the S’Cool LAB team and use the appropriate safety equipment provided. This experiment involves working with dry ice (approx. -80°C), isopropanol at >90% concentration, and working with torches in the dark.