Lab 2 – Water Quality and Contamination Experiment 1: Drinking Water Quality Bottled water is a billion dollar industry in the United States. Still, few people know the health benefits, if any, that come from drinking bottled water as opposed to tap water. This experiment will look at the levels of a variety of different chemical compounds in both tap and bottled water to determine if there are health benefits in drinking bottled water. POST-LAB QUESTIONS 1. Develop a hypothesis regarding which water sources you believe will contain the most and least contaminants, and state why you believe this. Be sure to clearly rank all three sources from most to least contaminants. Hypothesis = Bottled water contains the highest amount of contaminants while dasani water contains the least amount of contaminants. Table 1: Ammonia Test Results Water Sample Test Results (mg/L) Tap Water Dasani® Bottled Water Fiji® Bottled Water Table 2: Chloride Test Results Water Sample Test Results (mg/L) Tap Water Dasani® Bottled Water Fiji® Bottled Water Table 3: 4 in 1 Test Results Water Sample Total Alkalinity (mg/L) Total Chlorine (mg/L) Total Hardness (mg/L) Tap Water Dasani® Bottled Water Fiji® Bottled Water Table 4: Phosphate Test Results Water Sample Test Results (ppm) Tap Water Dasani® Bottled Water Fiji® Bottled Water Table 5: Iron Test Results Water Sample Test Results (ppm) Tap Water Dasani® Bottled Water Fiji® Bottled Water Table 6: pH Results Water Sample Test Results Tap Water Dasani® Bottled Water Fiji® Bottled Water 2. Based on the results of your experiment, would accept or reject the hypothesis you produced in question 1? Explain how you determined this. Accept/reject = I would accept my hypothesis because from my experiments, dasani water seemed to contain the least contaminants while tap water contained the most contaminants 3. Based on the results of your experiment, what specific differences do you notice among the Dasani®, Fiji®, and Tap Water? Answer = The specific differences are mainly in the taste and colour of the water.Dasani water seems to be very crystal clear,Fiji water is also clear but comparing the two to tap water the tap water is less clearer.On the basis of taste,dasani and Fiji water have no hidden tastes.The tap water contains a far hidden taste that one is able to sense when drinking it. 4. Based upon the fact sheets provided (links at the end of this document), do any of these samples pose a health concern? Use evidence from the lab to support your answer. Answer = The tap water seems to be capable of posing a health concern.This is because it might be containing diseases that can cause health problems when taken by human beings.It also contains hidden tastes that mean that it could be containing metals such as fluorine and this could pose problems such as dental fluorosis. 5. Based on your results, do you believe that bottled water is worth the price? Use evidence from the lab to ...

1. Lab 2 – Water Quality and Contamination
Experiment 1: Drinking Water Quality
Bottled water is a billion dollar industry in the United States.
Still, few people know the health benefits, if any, that come
from drinking bottled water as opposed to tap water. This
experiment will look at the levels of a variety of different
chemical compounds in both tap and bottled water to determine
if there are health benefits in drinking bottled water.
POST-LAB QUESTIONS
1. Develop a hypothesis regarding which water sources you
believe will contain the most and least contaminants, and state
why you believe this. Be sure to clearly rank all three sources
from most to least contaminants.
Hypothesis = Bottled water contains the highest amount of
contaminants while dasani water contains the least amount of
contaminants.
Table 1: Ammonia Test Results
Water Sample
Test Results (mg/L)
Tap Water
Dasani® Bottled Water
Fiji® Bottled Water

2. Table 2: Chloride Test Results
Water Sample
Test Results (mg/L)
Tap Water
Dasani® Bottled Water
Fiji® Bottled Water
Table 3: 4 in 1 Test Results
Water Sample
Total Alkalinity
(mg/L)
Total Chlorine
(mg/L)
Total Hardness
(mg/L)
Tap Water
Dasani® Bottled Water
Fiji® Bottled Water
Table 4: Phosphate Test Results
Water Sample
Test Results (ppm)
Tap Water

3. Dasani® Bottled Water
Fiji® Bottled Water
Table 5: Iron Test Results
Water Sample
Test Results (ppm)
Tap Water
Dasani® Bottled Water
Fiji® Bottled Water
Table 6: pH Results
Water Sample
Test Results
Tap Water
Dasani® Bottled Water
Fiji® Bottled Water
2. Based on the results of your experiment, would accept or
reject the hypothesis you produced in question 1? Explain how
you determined this.
Accept/reject = I would accept my hypothesis because from my
experiments, dasani water seemed to contain the least
contaminants while tap water contained the most contaminants
3. Based on the results of your experiment, what specific
differences do you notice among the Dasani®, Fiji®, and Tap

4. Water?
Answer = The specific differences are mainly in the taste and
colour of the water.Dasani water seems to be very crystal
clear,Fiji water is also clear but comparing the two to tap water
the tap water is less clearer.On the basis of taste,dasani and Fiji
water have no hidden tastes.The tap water contains a far hidden
taste that one is able to sense when drinking it.
4. Based upon the fact sheets provided (links at the end of this
document), do any of these samples pose a health concern? Use
evidence from the lab to support your answer.
Answer = The tap water seems to be capable of posing a health
concern.This is because it might be containing diseases that can
cause health problems when taken by human beings.It also
contains hidden tastes that mean that it could be containing
metals such as fluorine and this could pose problems such as
dental fluorosis.
5. Based on your results, do you believe that bottled water is
worth the price? Use evidence from the lab to support your
opinion.
Answer = Yes bottled water is worth the price.This is because it
goes through many treatment processes over and above the
minimum required ones and this is important as it ensures that
the water that is sold to people is safe.
**NOTE: Be sure to complete steps 1 - 32 of Lab 3, Experiment
1 (the next lab) before completing your work for this week. Lab
3 involves growing plants, and if the work is not started this
week, your seeds will not have time to grow and the lab will not
be finished on time.**
FACT SHEETS

5. Ammonia
https://www.wqa.org/Portals/0/Technical/Technical%20Fact%20
Sheets/2014_Ammonia.pdf
Chloride
http://www.who.int/water_sanitation_health/dwq/chloride.pdf
Phosphate
http://osse.ssec.wisc.edu/curriculum/earth/Minifact2_Phosphoru
s.pdf
Iron
http://www.who.int/water_sanitation_health/dwq/chemicals/iron
.pdf
pHhttps://www.watersystemscouncil.org/download/wellcare_inf
ormation_sheets/potential_groundwater_contaminant_informatio
n_sheets/9709284pH_Update_September_2007.pdf
Alkalinity
https://www.safewater.org/PDFS/communitywatertestkit/Water_
Quality_Tests.pdf
Chlorine
http://www.watertechonline.com/testing-for-chlorine-in-
drinking-water/
Hardness
http://des.nh.gov/organization/commissioner/pip/factsheets/dwg
b/documents/dwgb-3-6.pdf
References
Any sources utilized should be listed here.

6. © eScience Labs, 2016
Running Head: TITLE
1
Title
3
Title
Name
SCI 207: Our Dependence Upon the Environment
Instructor
Date
*This template will provide you with the details necessary to
finalize a quality Final Lab Report. Utilize this template to
complete the Week 5 Final Lab Report and ensure that you are
providing all of the necessary information and proper format for
the assignment. Before you begin, please note the following
important information:
1. Carefully review the Final Lab Report instructions before you
begin this assignment.
2. The Final Lab Report should cover the Drinking Water
Quality Experiment from your Week Two Lab.
3. Review instructor feedback from the Week Three outline of
the Final Lab Report and make changes as necessary.
4. Review the Sample Final Lab Report for an example of a
final product on a different topic. Your format should look like
this sample report before submission.
5. Make sure your final report is in proper APA format. Use the
Sample Final Lab Report as a guide, or obtain an APA Template
from the Writing Center.
6. Run your Final Lab Report through Turnitin using the student
folder to ensure protection from accidental plagiarism

7. Title
Abstract
The abstract should provide a brief summary of the methods,
results, and conclusions. It should very briefly 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).
Introduction
The introduction should describe the background of water
quality and related issues using cited examples. You should
include scholarly sources in this section to help explain why
water quality research is important to society. When writing
this section, make sure to cite all resources in APA format.
The introduction should also contain the objective for your
study. This objective is the reason why the experiment is being
done. Your final report should provide an objective that
describes why we want to know the answer to the questions we
are asking.
Finally, the introduction should end with your hypothesis. This
hypothesis should be the same one posed before you began your
experiment. You may reword it following feedback from your
instructor to illustrate a proper hypothesis, however, you should
not adjust it to reflect the “right” answer. You do not lose
points for an inaccurate hypothesis; scientists often revise their
hypotheses based on scientific evidence following an
experiment. Include an explanation as to why you made the
hypothesis that you did.
Materials and Methods
The materials and methods section should provide a brief
description of the specialized materials used in your experiment
and how they were used. This section needs to summarize the
instructions with enough detail so that an outsider who does not
have a copy of the lab instructions knows what you did.
However, this does not mean writing every little step like “dip

8. the chloride test strip in the water, then shake the test strip,”
these steps can be simplified to read “we used chloride test
strips to measure the chloride levels of each sample in mg/L”,
etc. Additionally, this section should be written in the past
tense and in your own words and not copied and pasted from the
lab manual.
Results
The results section should include all tables used in your
experiments. All values within the tables or graphs should be in
numerical form and contain units. For instance, if measuring
the amount of chloride in water you should report as 2 mg/L or
0 mg/L, not as two or none.
The results section should also highlight the important results in
paragraph form, referring to the appropriate tables when
mentioned. This section should only state the results as no
personal opinions should be included. A description of what the
results really mean should be saved for the discussion. For
example, you may report, 0mg/L of chlorine were found in the
water, but should avoid personal opinions and interpretations of
the data (e.g., “No chlorine was found in the water showing it is
cleaner than the others samples”).
Discussion
The discussion section should interpret your data and provide
conclusions. Start by discussing whether you accepted or
rejected your hypothesis and how you arrived at this decision.
In the same section, consider some of the implications of your
results. Given the chemical differences you may have noted
between the water samples, are any of the differences causes for
concern? Why or why not?
The discussion should also relate your results to the bigger
water concerns and challenges. For example, based on your
experiments you might discuss how various bottled water
companies use different filtration systems. Or, you could
discuss the billion dollar bottled water industry. For example,
do you think it is worth it to buy bottled water? Why or why
not? Your final lab report should utilize credible and scholarly

9. resources to put your results into context.
Finally, the results section should also address any possible
factors that may have affected your results, such as possible
contamination in the experiments or any outside factors (e.g.,
temperature, contaminants, time of day). If so, how could you
control for these in the future? You should also propose some
new questions that have arisen from your results and what kind
of experiment might be proposed to answer these questions.
Conclusions
The conclusion section should briefly summarize the key
findings of your experiment. What main message would you
like people to have from this report?
References
Include at least two scholarly references, two credible
references, and your lab manual in APA format.