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This laboratory activity helps learners understand the concept of biological succession by simulating the process in a microenvironment with various protozoans.

Many common household cleaners are antimicrobials.

In this series of exercises, learners predict the conditions necessary for bacterial growth, test their predictions and at the same time practice the aseptic techniques and safety procedures needed wh

In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).

In this activity, learners make balloon models of disease-causing bacteria.