Simulates how a virus spreads. Try different numbers of jellyfish, how long they are infected for, and what chance they have of dying. Reds are infected, whites died, dark orange survived and became immune.
Different combinations will have a different result. The virus will spread, kill some, then may disappear. Free to use for school or home... Do a science experiment, by writing down the results after 20, 40 and 60 seconds or more.
