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In this Science Buddies science project, you'll determine if sediment from parking lots contain compounds that are harmful for aquatic organisms. You can customize this kit to include the Daphnia magna culture kit, fine mesh net, pipets, and other supplies needed to complete this experiment.
One way to test for the presence of toxic compounds in a water sample is a bioassay. In a bioassay, a living organism serves as a detector for toxins—the same way canaries were used in coal mines to detect invisible toxic gases. In this project, water fleas (Daphnia magna), a freshwater crustacean, are used in a bioassay to monitor water quality. Many variations of this experiment are possible.
View the full project, background information, procedures, and more at ScienceBuddies.com
