The Problem
Water pollution. Run offs from human products. Promote use of eco-friendly material
Water pollution. Run offs from human products. Promote use of eco-friendly material
Demonstrate effects of phosphate rich fertlizers on algal growth to middle schoolers
Demonstrated at middle school. I used test tubes with lake water- equal amounts and mixed then with household products that have high high phospohrous content : used 2 brands of fertlizers and 2 beand of conventional toothpaste. In another set up of 5 tubes, I used herbal/eco-friendly toothpaste brand. They were left in classroom near window for 14 days. Fertilizer had highest algal growth and herbal brand least. Discussed eutrophication and algal bloom with 7th graders.
Effects of daily use or common household products on nitrate run off
Not sure at this time
Sharing results with 7th graders
Very easy project to do