Dp+study+guild+Dissolved+Oxygen

=Project Search Study Guide= Water Test: Dissolved Oxygen

1.) How does dissolved oxygen get into the water? Through diffusion and photosynthesis

2.) Why is it important to the ecosystem? so the fish can breath

3.) How do humans impact the levels of Dissolved Oxygen? sewage and bacteria

4.) What does it mean to fix the oxygen? Why did we need to do this? keeping the oxygen from diffusion

5.) What are some of the precautions you need to take in this lab?

6.) What is titration? slowly adding a liquid to a liquid

7.) How do you read a direct reading titrator?