You just need to talk about the physics of the cloud chamber and what it detects. There is a lot you can talk about, though. You can try to identify the specific particles from the shapes of the ...

You just need to talk about the physics of the cloud chamber and what it detects. There is a lot you can talk about, though. You can try to identify the specific particles from the shapes of the ...

resulting in streaks in the cloud chamber showing you the particle's path. In this setup, you can see all sorts of particles, ...