Ashford SCI207 week 1 lab

QUESTION

Lab 1 – Introduction to Science
Exercise 1: The Scientific Method
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Dissolved
oxygen is oxygen that is trapped in a fluid, such as water. Since many living
organism requires oxygen to survive, it is a necessary component of water
systems such as streams, lakes and rivers in order to support aquatic life. The
dissolved oxygen is measured in units of parts per million (ppm). Examine the
data in Table 4 showing the amount of dissolved oxygen present and the number
of fish observed in the body of water the sample was taken from; finally,
answer the questions below.

QUESTIONS
1.
Make
an observation – Based on the data in Table 4,
discuss what patterns you observe in regards to dissolved oxygen content and
fish populations in the body of water?

2.
Do
background research – Utilizing at least
one scholarly source, describe how the dissolved oxygen content in a body of
water can effect fish populations.
3.
Construct
a hypothesis – Based on your observation in
question 1 and your background research in question 2,
develop a hypothesis relating to the amount of dissolved oxygen measured in the
water sample and the number of fish observed in the body of water?
4.
Test
with an experiment – Describe an
experiment that would allow you to test your hypothesis from question 3. This description must provide ample detail to
show knowledge of experimental design and should list the independent and
dependent variables, as well as your control.
5.
Analyze
results – Assume that your experiment produces
results identical to those seen in Table 4, what type of graph would be
appropriate for displaying the data and why?

6.
Analyze
results – Graph the data from Table 4 and
describe what your graph looks like (you do not have to submit a picture of the
actual graph!).
7.
Draw
conclusions – Interpret the data from the
graph made in Question 7. What
conclusions can you make based on the results of this graph?
8.
Draw
conclusions – Assuming that your experiment
produced results identical to those seen in Table 4, would you reject or accept
the hypothesis that you produced in question 3?
Explain how you determined this.

ANSWER:

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