Bacteriopolis

In this long-term activity, learners make a home for a colorful community of microorganisms. Over the course of several weeks or more, learners will see colors appear and shift as the microbial populations grow and change. There is an optional to spot photosynthesizing bacteria using a UV flashlight. This activity is based on a museum exhibit at the Exploratorium, and includes a link to a video that showcases the exhibit up-close.