More rather a cloud in a cup. This brief activity provides a very informative, visual, small-scale model of phenomena that occur in order to form a cloud. All materials needed are very accessible and the results are very cool. The background information and scientific explanations are basic and minimal and could be improved with some extension or references to other resources that could expand on this concept. I would suggest lifting up the metal pan slightly after a minute in order to see the condensed water moving and escaping from the cup.