University of Illinois at Urbana-Champaign

Lesson 5: How can an environmental toxicant affect Daphnia?

This lesson is part of the unit:

Lesson Description:

In this lesson, students conduct an experiment to examine the effect(s) that a common aquatic algaecide, copper sulfate, has on Daphnia, a small zooplankton found in freshwater lakes that is used as a model organism in scientific research. Using their experimental data, students draw conclusions about the safety of using copper sulfate as a way to control algae overgrowth in aquatic ecosystems and recommend a safe concentration (if there is one) of this algaecide to use in ponds. 

Materials last updated:

Feb 3, 2015

Lesson materials:

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