A Fungus Among Us- Lesson plan

http://kids.discovery.com/activities/science-experiments/a-fungus-among-us

A science experiment that helps children understand how and why mold grows. The experiment includes putting four different objects in baby food jars and then one that is "controlled." In the baby food jars you will put a string that you have placed on your desk, window, floor, and other objects and watch how the mold grows! The end result will show that colonies of bacteria will grow on each of the pieces of string but the controlled one!