This project automates the Incredible Journey water cycle activity. Click the "Set all to..." button to put a starting number of water particles into the 9 locations. Click the "Step" button to run the simulation 1 time. This means each water particle "rolls the dice" at their station. Click "10 more steps" to run the simulation 10 times.
This is based on the Incredible Journey class activity. I found the activity on Project Wet.