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Pollutant Effects of Phosphates and Nitrates

Kit #20

This kit is an excellent environmental pollution laboratory activity. Students use water samples from nearby fresh waterways to set up controlled experiments, observe them, and determine the effects on fresh water (both qualitative and quantitative) when phosphate and nitrate compounds are added. Over a period of ten days, students will observe and compare the blooming of algae and bacteria in water samples spiked with varying amounts of pollutants.

Details at a Glance

  • 1 Day | 1 ~50 minute class period
  • 1 Activity
  • Accommodates 6 classes, each with 5 groups of 7 students
  • Consumables service 210 students
  • Meets our criteria for supporting literacy
  • Requires a water source

Complete Kit Equipment Package

Pollutant Effects of Phosphates and Nitrates

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Scientific Concepts

  • Investigate pollution and environmental impact
  • Experiment with phosphate and nitrate compounds and the growth of algae over a 10 day period
  • Understand how nitrogen and phosphorous contribute to environmental problems
  • Calculate the growth rate of algae

Guides & Student Sheets

Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.

  • Full downloadable Teacher Guide with background information, detailed instruction, example data and answers
  • Downloadable Student Sheets with age appropriate background information, full procedure(s), and analysis questions
  • All materials necessary to carry out the investigation
  • Safety Data Sheets

Kit Components

  • 35 Clear plastic testing containers
  • 35 Pressure sensitive identification labels
  • 3 30-mL drop control bottles of Nitrate solution
  • 3 30-mL drop control bottles of Phosphate and Nitrate solution
  • 3 30-mL drop control bottles of Phosphate Solution
  • 30 Student Guides
  • 1 Teacher’s Guide with MSDS

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