SCI Wk 1 Lab Reporting Form Essay - 604 Words

Lab 1 – Introduction to Science Exercise 1: The Scientific Method 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†¦show more content†¦Independent-dissolving oxygen. Dependent-fish. No control-because the pump was never turned back on and without the pump we can not control the fish dieing. 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? Answer = A line graph will be appropriate because it supports the hypothesis because it provides clear results. 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!). Answer = It would have categories for the number of fish, the amount of water, the tempature of the water, and if nutrients were added. 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? Answer = The graph shows the fish population increases in due to more dissolved oxygen that is found in the body of water. 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 = I would accept the hypothesis. Because the experiement is replicable because only one test was done at a time and all steps were included. References Francis-Floyd, R. (2003).