Does pollution travel through the water cycle, too?
So using sticky-notes as a simulation for pollution, every time someone who visited a polluted station, they had to "drop off" some of the pollution they received. Quickly seeing how fast pollution can spread, it became obvious that pollution can travel through the water cycle. At the start of the game, Mrs. Brinza had only polluted the river and the lake. At the end of the water cycle game, pollution had reached everywhere, including the clouds, the oceans, and the animals. Wow!