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Water Quality and Contamination
Read Lab 2: Water Quality and Contamination. This lab will allow you to investigate the effects of common pollutants on groundwater as well as mimic the filtration process utilized by wastewater treatment facilities. Additionally, you will perform tests on your own tap water to compare differences in contaminants found in bottled versus tap water. Then, utilize this information and your eScience lab kit to complete Experiments 1 through 3 on the Lab 2 Reporting Form.
Make sure that all of the following items are completed before submission:
- Read through intro material and record your hypothesis for Experiment 1 on the Lab 2 Reporting Form.
- Perform “Experiment 1: Effects of Groundwater Contamination” using your eScience lab manual and kit.
- Answer post lab questions 1 through 5 on the Lab 2 Reporting Form.
- Record your hypothesis for Experiment 2 on the Lab 2 Reporting Form.
- Complete “Experiment 2: Water Treatment” using your eScience lab manual and kit. Answer post lab questions 1 through 3 on the Lab 2 Reporting Form.
- Record your hypothesis for Experiment 3 on the Lab 2 Reporting Form.
- Complete “Experiment 3: Drinking Water Quality” using your eScience lab manual and kit. Answer post lab questions 1 through 3 on the Lab 2 Reporting Form.
- Go to Lab 3: Biodiversity and complete “Experiment 2: Diversity of Plants” steps 1 through 5. Steps 1 through 5 need to be completed in order to be prepared for Week Three, however, results for this experiment will not be calculated until next week. Thus, nothing is to be handed in for this experiment until the end of Week Three.
Only the post lab questions for “Lab 2: Water Quality and Contamination” should should be completed on the Lab 2 Reporting Form. Save your completed Lab 2 Reporting Form as a Word document. The document must be formatted according to APA style, including a title page and references page.
Tableof Contents Environmental Science
Lab 2
Water Quality and Contamination
Introduction
Concepts to ExploreConcepts to ExploreConcepts to ExploreConcepts to Explore
Water Quality and Contamination
Water Quality and Contamination
Water Quality and Contamination
Water Quality and Contamination
Experiment 1: Effects of Groundwater Contamination
Procedure
Materials
Water Quality and Contamination
Hypothesis
Water Quality and Contamination
Post-Lab Questions
Water Quality and Contamination
Experiment 2: Water Treatment
Procedure
Materials
Water Quality and Contamination
Hypothesis
Post-Lab Questions
Water Quality and Contamination
Experiment 3: Drinking Water Quality
Procedure
Ammonia Test Strip
Materials
Water Quality and Contamination
Chloride Test Strip
4 in 1 Test Strip
Water Quality and Contamination
Phosphate Test Strip
Iron Test Strip
20.
Table of Contents Environmental Science
Hypothesis:
Post-Lab Questions
Water Quality and Contamination
Test Strip Key:
Water Quality and Contamination
Test Strip Key (cont.):
Lab 2 – Experiment 1: Effects of Groundwater Contamination
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Table 1: Water Observations (Smell, Color, Etc.) |
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Beaker |
Observations |
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1 |
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2 |
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3 |
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4 |
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5 |
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6 |
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7 |
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8 |
Hypothesis:
Post-Lab Questions
1. Restate your hypothesis. Was it confirmed or denied? How do you know?
2. What affects did each of the contaminants have on the water in the experiment? Which contaminant seemed to have the most potent effect on the water?
3. On a larger scale, what type of affects would these contaminants have on a town’s water source and the people who drank the water?
4. What type of human activity would cause contaminants like oil, acid and detergents to flow into the water supply?
5. What other items within your house do you believe could contaminate the water supply if you were to dump them into the ground?
Lab 2 – Experiment 2: Water Treatment
Hypothesis:
Post-Lab Questions
1. Restate your hypothesis. Was it confirmed or denied? How do you know?
2. What are the differences between the “contaminated” water and the “treated” water
(look at color, smell, visibility, etc.)?
3. From the introduction to this lab, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed.
Lab 2 – Experiment 3: Drinking Water Quality
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Table 2: Ammonia Test Results |
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Water Sample |
Test Results |
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Tap Water |
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Dasani® Bottled Water |
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Fiji® Bottled Water |
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Table 3: Chloride Test Results |
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Table 4: 4 in 1 Test Results |
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pH |
Total Alkalinity |
Total Chlorine |
Total Hardness |
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Table 5: Phosphate Test Results |
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Table 6: Iron Test Results |
Hypothesis:
Post-Lab Questions
1. Restate your hypothesis. Was it confirmed or denied? How do you know?
2. After comparing the results of tap water and bottled water, what major differences, if
any, do you notice between the two?
3. From your results, do you believe that bottled water is a healthier alternative when compared to tap water? Why or why not?
© eScience Labs, 2012
Tableof Contents Environmental Science
Lab 3
Biodiversity
Introduction
Concepts to ExploreConcepts to ExploreConcepts to ExploreConcepts to Explore
Biodiversity
???? Did You Know… Did You Know… Did You Know… Did You Know…
Biodiversity
Biodiversity
Biodiversity
Experiment 1: Interdependence of Species
Procedure
Materials
Biodiversity
Hypothesis
Post-Lab Questions
Biodiversity
Experiment 2: Diversity of Plants
Procedure
Materials
Biodiversity
Biodiversity
Biodiversity
Hypothesis
Post-Lab Questions
