Dr. James Burkhart at UCCS Physics Department taught Christina and Eric to build a cloud chamber. The items needed include: a radioactive source, chamber to view, dry ice, rubbing and 100 proof alcohols, flash light, and a little bit of magic. We used a Coleman mantle lantern as a radioactive source. The cloud chamber shows alpha and beta rays similar to how radon gas gets into your lungs. If you smoke, these alpha particles hook on to smoke and the harmful effects of radon are even greater.
Below is a video of the Cloud Chamber.