Preview

lab 1 assignment

Satisfactory Essays
Open Document
Open Document
395 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
lab 1 assignment
Exercise 1:
Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since virtually every 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 measure in units of ppm—or parts per million. Examine the data in Table 2 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.
Table 2: Water quality vs. fish population

Dissolved Oxygen (ppm)
0
2
4
6
8
10
12
14
16
18
Number of Fish Observed
0
1
3
10
12
13
15
10
12
13

1. Based on the information in Table 2, what patterns do you observe? Based on the information in Table 2 there is a pattern of 2ppm oxygen with 1 fish observed then 4ppm and 3 fish observed and once it goes to 6ppm there is more fish observed of 10 and it peaks at 12ppm then starts going down on the number of fish observed in a pattern of 10, 12, 13, and 15.

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.
My hypothesis would be if there is more dissolved oxygen in the water area then there would be more fish in the area that each sample is taken.

3. What would your experimental approach be to test this hypothesis? I would do similar to this and would test the dissolved oxygen in various areas of the water and track the amount of fish in those areas with lastly comparing the results.

4. What are the independent and dependent variables?
Independent variable is the dissolved oxygen with the dependent variable being the fish.

5. What would be your control?
There wouldn’t be a control.

6. What type of graph would be appropriate for this data set? Why?
A line graph would work best with this data set because it would provide the clearest results of

You May Also Find These Documents Helpful

  • Powerful Essays

    BIOL102 Lab 1

    • 1686 Words
    • 8 Pages

    A body of water may affect the parts per million of dissolved oxygen and the number of fish observed. If the dissolved oxygen levels increase, then the number of fish observed will also increase.…

    • 1686 Words
    • 8 Pages
    Powerful Essays
  • Good Essays

    Lab Module 1

    • 808 Words
    • 4 Pages

    K. Stage knobs or clips – secures and adjusts the slides position on the stage…

    • 808 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    MPS1 Spring 2015

    • 516 Words
    • 2 Pages

    A. Draw a simple frequency distribution (a bell curve) of finch beak depth before the drought. (Google “graph of frequency distribution” if you don’t know what one looks like.)…

    • 516 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Goldfish Respiration

    • 450 Words
    • 2 Pages

    Each trial we had to calculated how many breaths of the fish for a full minute and record the data. First, we got the temperature of the beaker and lowered the temperature of the water. Second, on trail one, we added crushed ice and wait a minute for the fish to adjust. Then count and record the number of breaths the fish takes within 1 minute period at each…

    • 450 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Science Lab 1

    • 699 Words
    • 3 Pages

    2. Explain how you tested your hypothesis. (Give details of how you conducted your experiment. Consider this the “Methods” section of a lab report.)…

    • 699 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Once the sample was collected, pH, temperature, dissolved oxygen, and turbidity were measured. To determine turbidity, a transparency tube with a checkerboard pattern was used. The trasparency tube was emptied and then filled with water so that the pattern on the bottom could bnot be seen. Water was then slowly released and a measurement was taken when the checkerboard was visible again. There were some measurements that were not taken due to the lack of a thermometer on September 13th at Wellwoods Bayou and Wellwoods Lake. A sample bottle from each site was collected and analyzed by Meredith McManus in the lab to determine biological oxygen demand (BOD). Salinity was also measured at each site, but there was no salt present because all sites consisted of fresh…

    • 1281 Words
    • 6 Pages
    Better Essays
  • Powerful Essays

    Nt1330 Unit 3

    • 1039 Words
    • 5 Pages

    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.…

    • 1039 Words
    • 5 Pages
    Powerful Essays
  • Powerful Essays

    Bio Lab 1-2 Answers

    • 1638 Words
    • 6 Pages

    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.…

    • 1638 Words
    • 6 Pages
    Powerful Essays
  • Satisfactory Essays

    SCI 207 Entire Course

    • 989 Words
    • 5 Pages

    1. 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?…

    • 989 Words
    • 5 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The Pond Ecosystem

    • 877 Words
    • 4 Pages

    3. Just as soda contains dissolved carbon dioxide, pond water contains dissolved oxygen. The unit for measuring the concentration (amount) of oxygen is parts per million (ppm).…

    • 877 Words
    • 4 Pages
    Satisfactory Essays
  • Good Essays

    assignment lab 1

    • 751 Words
    • 4 Pages

    This program will determine the usable area of a house. The rooms are rectangular in shape and maximum of four rooms are allowed to be calculated at once. It will use the area formula for a rectangle to find the usable area of each room and once the calculation are made for each room it will print out the total usable area of a house to the output screen.…

    • 751 Words
    • 4 Pages
    Good Essays
  • Better Essays

    The null hypothesis for this experiment is that the flashier the male are more attractive they will become to the female and predators. This will lead to the decrease of population and changes in the population. The frequency for the color fishes will decrease as time passes.…

    • 1164 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Put the pennies (5, 10, 20, 30) into the mixtures; determine the volume of the pennies.…

    • 1204 Words
    • 4 Pages
    Good Essays
  • Good Essays

    In our experiment we had 6 test tubes. Each test tube had a different ratio of algae to fertilizer in the water. Our first test tube was our control (15 mL of algae water), with no fertilizer as piper lake was before the excess fertilizer started leaking in. the next 5 test tubes had varying amounts of fertilizer as shown by the table. All of the test tubes added up to 15 mL. Over to course of 7 days we collected containing data on the growth of the algae. My hypothesis was that if we add varying amounts of fertilizer into the water from Piper Lake, the fertilizer will increase the algal blooms.…

    • 613 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    The amount of dissolved oxygen present in water or wastewater is crucial for most forms of life. Dissolved oxygen is a good indicator of water quality. Oxygen dissolves into water by means of the atmosphere and plants. The primary source of oxygen for a body of water is from microscopic algae or submerged plants. The concentration of oxygen is greatest during the daylight hours due to photosynthesis.…

    • 2070 Words
    • 9 Pages
    Powerful Essays