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Final lab report

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BETHS LAB WK2 Part 1-1.doc

Final Lab Report

You are required to write a complete laboratory report that covers all three experiments for "Lab 2: Water Quality and Contamination," using knowledge gained throughout the course. To begin, download the Final Lab Report Template and utilize this form to ensure proper formatting and inclusion of all required material. Additionally, view the Sample Final Lab Reportbefore beginning this assignment, which will illustrate what a Final Lab Report should look like. You must use at least four scholarly sources and your lab manual to support your points. The report must be six to ten pages in length (excluding the title and reference pages) and formatted according to APA style. For information regarding APA samples and tutorials, visit the Ashford Writing Center, located within the Learning Resources tab on the left navigation toolbar. 

The Final Lab Report must contain the following eight sections in this order:

  1. Title Page – This page must include the title of your report, your name, course name, instructor, and date submitted.
  2. Abstract – This section should provide a brief summary of the methods, results, and conclusions. It should allow the reader to see what was done, how it was done, and the results. It should not exceed 200 words and should be the last part written (although it should still appear right after the title page).
  3. Introduction – This section should include background information on water quality and an overview of why the experiment was conducted. It should first contain background information of similar studies previously conducted. This is accomplished by citing existing literature from similar experiments. Secondly, it should provide an objective or a reason why the experiment is being done. Why do we want to know the answer to the question we are asking? Finally, it should end with all three hypotheses from your Week Two experiments. These hypotheses should not be adjusted to reflect the “right” answer. Simply place your previous hypotheses in the report here. You do not lose points for an inaccurate hypothesis; scientists often revise their hypotheses based on scientific evidence following the experiments.
  4. Materials and Methods – This section should provide a detailed description of the materials used in your experiment and how they were used. A step-by-step rundown of your experiment is necessary; however, it should be done in paragraph form, not in a list format. The description should be exact enough to allow for someone reading the report to replicate the experiment, however, it should be in your own words and not simply copied and pasted from the lab manual.
  5. Results – This section should include the data and observations from the experiment. All tables and graphs should be present in this section. In addition to the tables, you must describe the data in text; however, there should be no personal opinions or discussion outside of the results located within this area.  
  6. Discussion – This section should interpret your data and provide conclusions. Discuss the meanings of your findings in this area. Was your hypothesis accepted or rejected, and how are you able to determine this? Did the results generate any future questions that might benefit from a new experiment? Were there any outside factors (i.e., temperature, contaminants, time of day) that affected your results? If so, how could you control for these in the future?
  7. Conclusions – This section should provide a brief summary of your work.
  8. References – List references used in APA format as outlined in the Ashford Writing Center.

Carefully review the  Grading Rubric for the criteria that will be used to evaluate your assignment.

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Lab 2 – Water Quality and Contamination Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 The water is clear and it does not smell about it. 2 This one has bubbles on top of the water and it is clear. This one does not have a smell about it. 3 This one is still clear but it has a small smell of vinegar about it. 4 The water looks green looking and it smells like dawn dish soap. 5 The water has changed to a brownish looking color but there really isn’t a smell about it. 6 The bubbles are gone from the top of the water and it still has a brownish looking color about it. It doesn’t have a smell. 7 You can still smell the vinegar in it and it is brownish looking. 8 The water now looks brownish green and it still smells like dawn dish soap. POST LAB QUESTIONS © eScience Labs, 2013 1. Develop hypotheses on the ability of oil, vinegar, and laundry detergent to contaminate groundwater. a. Oil hypothesis = Oil will not contaminate groundwater b. Vinegar hypothesis = I am not sure how vinegar can contaminate ground water. Is vinegar not a harmless product to use? c. Laundry detergent hypothesis = Laundry detergent could contaminate ground water if it is not gotten rid of properly. 2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this. a. Oil hypothesis accept/reject = when filtering the oil there was not any visible signs of any of the oil this could lead to problems of the oil is being disposed of the wrong way. So I would have to reject my hypothesis. b. Vinegar hypothesis accept/reject = I would have to reject this one because you could still smell the vinegar in the water. c. Laundry detergent hypothesis accept/reject = Even after filtering it you could still tell it was there. Not only could you still smell the laundry detergent it had also turn the water green. 3. 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? Answer = when you mixed the oil and water together you could see it form on top of the water. With the vinegar the water stayed clear but you could really smell it as well. With the laundry detergent not only did it change the color of the water but it also changed the smell of the water as well. 4. Using at least 1 scholarly source, discuss what type of affects these contaminants (oil, vinegar, detergent) might have on a town’s water source and the people who drank the water? © eScience Labs, 2013 Answer = Oil, vinegar, and laundry detergent can all contaminate ground water because this is a source of our drinking water. “The presences of contaminates in water can lead to health effect, it could cause reproductive problems, neurological disorders, and gastrointestinal illness,” (CDC, 2014). 5. Describe what type of human activity would cause contaminants like oil, acid and detergents to flow into the water supply? Additionally, what other items within your house do you believe could contaminate the water supply if you were to dump them onto the ground? Answer = We sometimes do things not realizing what is happening until we read or study about or at least I do anyways. When I wash my truck I use detergent. But when I was it off what happens. The soup runs off into the grass while you are rinsing it off. The suds then soak into the ground. Experiment 2: Water Treatment POST LAB QUESTIONS 1. Develop a hypothesis on the ability of your filtration technique to remove contaminants. Hypothesis = By filtering the water it might remove most of the contaminants in the water but not all of it. 2. Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 1? Explain how you determined this. Accept/Reject = I would reject it because even after I followed all of these steps and added the bleach the water still had like a dingy looking tint to it. © eScience Labs, 2013 3. What are the differences in color, smell, visibility, etc. between the “contaminated” water and the “treated” water? Answer = When looking at the contaminated water you could see that it was really dirty and had stuff floating around in the water. It looked really gross and it smelled like dirty. While the treated water still looked dingy looking it also smelled like bleach. 4. 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. Answer = Step 1: I added the soil to the beaker and switched it back and forth between the 2 beakers 15 times. Step 2: I add the alum to the beaker had the soil and water in it. Then I let it set for the next 15 minutes. During this time the soil went to the bottom of my beaker. Then I put the sand, gravel, and charcoal in. Then when I put the bleach in the water it acted as a disinfect. Experiment 3: Drinking Water Quality Table 2: Ammonia Test Results Water Sample Test Results Tap Water No ammonia Dasani® Bottled Water No ammonia Fiji® Bottled Water No ammonia Table 3: Chloride Test Results Water Sample Test Results Tap Water No Chloride Dasani® Bottled Water No chloride © eScience Labs, 2013 Fiji® Bottled Water No Chloride Table 4: 4 in 1 Test Results Water Sample pH Total Alkalinity Total Chlorine Total Hardness Tap Water 7 120 0 0 Dasani® Bottled Water 3 40 0.2 0 Fiji® Bottled Water 7 0 1.0 50 Table 5: Phosphate Test Results Water Sample Test Results Tap Water 50 Dasani® Bottled Water 10 Fiji® Bottled Water 100 Table 6: Iron Test Results Water Sample Test Results Tap Water 0 Dasani® Bottled Water 0 Fiji® Bottled Water 0 POST LAB QUESTIONS 1. Develop a hypothesis on which water source you believe will contain the most and least contaminants. Hypothesis = I would have to say that my tap water does not have as many contaminates as the bottle water. © eScience Labs, 2013 2. Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 1? Explain how you determined this. Accept/reject = I would have to accept the experiment. Because after testing my tap water and both bottles of water had more contaminates it in. The Dasani had more in it than what the tap water and Fiji had in it. 3. Based on the results of your experiment, what major differences, if any, do you notice between the Dasani, Fiji, and tap water? Answer = Both the Dasani and the Fiji had high levels of hardness in it. So while these waters may both taste good my tap water tested better that both of them. So really all you are paying for is the name on the product. 4. Based on your results, do you believe that bottled water is worth the price? Why or why not? Answer = I think that my tap water is just as good as the bottle water and a whole lot cheaper on the pocketbook. *NOTE – Do not forget to go to Lab 3: Biodiversity, and complete “Experiment 1: Diversity of Plants” steps 1 through 6. Steps 1 through 6 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, while nothing is to be handed in for this experiment until the end of Week Three you must plant the seeds this week to ensure that you can complete week 3 on time. References Any sources utilized should be listed here. © eScience Labs, 2013 CDC (2014 Center for Disease Control and Prevention Water-related Diseases Contaminates in Public Water Systems. www.cdc.gov/healthywater/drinking/public/water_disease.html © eScience Labs, 2013 ...
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Final Answer

johnalia (1058)
UT Austin

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