Lesson 4: What is the Relationship Between Dissolved Oxygen and Water Temperature?

In Lesson 1, you investigated the relationship between seasons and water temperature. The concentration of dissolved oxygen in water is related to water temperature. Can you determine the relationship between water temperature and dissolved oxygen concentration in water?

Doing the science

1. Start the Water Quality Simulation by clicking on the "Sim" tab.
2. Click on the "Zoom" icon.
3. Click on the "Oliphant" location.
4. Next, click on the "Dissolved Oxygen" icon.
5. Move the cursor to a position on Bailey’s Brook in Oliphant and click on the water.
6. Note and record in Table 1 below the month and dissolved oxygen displayed in the popup box.
7. Click the forward arrow next to the month "September" at the top, middle of the screen.
8. Click on the "x" (close icon) at the top right-hand corner of the "Dissolved Oxygen" pop-up box in the middle of the screen.
9. Repeat steps 5 – 8 until you have collected dissolved oxygen data until the month of June.
10. Enter your Temperature data from Lesson 1 in Table 1 below.