TJ+Study+Guide+Dissolved+Oxygen

=Project Search Study Guide= Water Test: Dissolved Oxygen

1.) How does dissolved oxygen get into the water? Dissolved Oxygen gets into the water by a couple ways, through diffusion through the air, and photosynthesis with aquatic plants.

2.) Why is it important to the ecosystem? It is important to the ecosystem because it helps the aquatic animals live, and breath.

3.) How do humans impact the levels of Dissolved Oxygen? We impact the levels by sewage and fertilizer.

4.) What does it mean to fix the oxygen? Why did we need to do this? To check the PH levels. And keeping the Oxygen contained in the bottle. We need to do this so we don't have extra oxygen diffusing into the water.

5.) What are some of the precautions you need to take in this lab? Goggles, and can't get any of the liquids on your hands.

6.) What is titration? Titration is slowly adding a liquid to another liquid while observing the changes.

7.) How do you read a direct reading titrator? You read a titrator from the bottom of the plunger.