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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

In this environmental health activity, learners investigate their own vital lung capacities.

In this four-day activity, learners grow bacteria and/or fungi from a variety of locations and compare the results.