LC50 Aquatic Toxicity

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Kit accommodates a class of 30 students working in groups of 6; available with the perishable material included or with a prepaid coupon to request the perishable material later at your convenience. During the lab, students prepare various concentrations of ammonium sulfate, a fertilizer component, and introduce Daphnia magna into their solutions. After 24 hours, students observe the mortality percentage of Daphnia in each concentration and determine the LC50 of ammonium sulfate.

Description

Grades 9-12.
Learn about some environmental impacts of population growth
Perform static aquatic toxicity testing
Determine and graph the results of an LC50 test
Kit accommodates a class of 30 students working in groups of 6; available with the perishable material included or with a prepaid coupon to request the perishable material later at your convenience. During the lab, students prepare various concentrations of ammonium sulfate, a fertilizer component, and introduce Daphnia magna into their solutions. After 24 hours, students observe the mortality percentage of Daphnia in each concentration and determine the LC50 of ammonium sulfate.

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