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Carolina EcoKits®: LC50 Aquatic Toxicity (with perishable)

(in stock)


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

Students are introduced to static toxicity tests used by the EPA and other health and environmental organizations to set water quality standards. 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. Kit accommodates a class of 30 students working in groups of 6 and includes perishable material when kit is shipped.


Shipping Information or Purchase Restrictions
  • Exclamation icon This item contains living or perishable material and ships via 2nd Day or Overnight delivery.
What’s Included:
  • 4 Daphnia magna Cultures  
  • 1 Ammonium Sulfate, 5 g
  • 35 Plastic Cups
  • 40 Pipets
  • 1 Teacher’s Manual and Reproducible Student Guide
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Needed But Not Included:
  • 5 Plastic Containers (for solutions)
  • 6 Permanent Markers
  • 5 Graduated Cylinders, 100 mL
  • 1 Scissors
  • 1 Balance
  •  Springwater, 1 gal
  •  Weigh Boats or Weigh Paper
  •  Gloves
  •  Chemical Splash-resistant Goggles
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