Lab-Aids: Qualitative Introduction to Water Pollution
What are some common causes of water pollution in today's world?
- Organic waste from sewage
- Industrial chemicals dumped into ground water
- Rain contamination by air pollution
- Fertilizers and pesticides washed into water from farmlands
This kit provides an unsophisticated, but effective way to examine their region's natural and treated waters. The easy-to-perform chemical tests in this kit qualitatively identify many common water pollutants. Pollutants are detected through color changes - the deeper the color, the greater the pollution. Results are safe, reliable and very dramatic. Tests are performed for these common pollutants: Ammonia, Chlorine, Chromium, Copper, Cyanide, Iron, Nitrate, Phosphate, Silica and Sulfide. While conducting these tests, students also learn about the different methods used in quality water testing methods, how to interpret results from these methods, and how to identify the pH of locally collected water. This kit includes enough material to conduct 50 tests for each of the ten major pollutants.
Scientific Concepts:
- Chemically examine natural waters
- Gain a basic understanding of water analysis
- Interpret tests
- Identify ten common pollutants in natural waters
- Measure pH of water samples
Content List:
- 1 Teacher's Guide with MSDS
- 50 Student Worksheets and Guides
- 12 LAB-AIDS‚® Chemplates w/spatulas
- 12 Calibrated sample tubes w/caps
- 1 Bottle of Chromate indicator powder
- 2 Bottles of Iron indicator powder No. 2
- 2 Bottles of Nitrate indicator powder No. 2
- 2 Drop control bottles of Nitrate test‚ solution‚ No. 1
- 1 Drop control bottle of Ammonia test‚ solution‚ No. 1
- 2 Drop control bottles of Ammonia test‚ solution‚ No. 2
- 1 Drop control bottle of Chlorine test‚ solution
- 1 Drop control bottle of Chromium Extracting‚ solution
- 2 Drop control bottles of Phosphate test solution No. 1
- 1 Drop control bottle of Phosphate test‚ solution‚ No. 2
- 1 Drop control bottle of Silica test‚ solution‚ No 1
- 1 Drop control bottle of Silica test‚ solution‚ No 2
- 1 Drop control bottle of Silica test‚ solution‚ No 3
- 1 Drop control bottle of Silica test‚ solution‚ No 4
- 2 Drop control bottles of Sulfide test‚ solution‚ 1
- 1 Drop control bottle of Sulfide test‚ solution‚ 2
- 2 Drop control bottle of Sulfide test‚ solution‚ 3
- 1 Drop control bottle of Universal indicator
- 1 Drop control bottle of Copper test‚ solution‚ No. 1
- 1 Drop control bottle of Copper test‚ solution‚ No. 2
- 1 Drop control bottle of Cyanide test‚ solution‚ No. 1
- 1 Drop control bottle of Cyanide test‚ solution‚ No. 2
- 1 Drop control bottle of Iron test‚ solution‚ No. 1
Classroom Planning:
- To complete this kit requires 1 ~50-minute class period.
- Number of students: 50
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