HT+Study+Guide+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 aquatic animals can breath.

3.) How do humans impact the levels of Dissolved Oxygen? Through sewage and fetilizer waste.

4.) What does it mean to fix the oxygen? Why did we need to do this? Keeping the oxygen from coming out.

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

6.) What is titration? Slowly adding a liquid to another liquid.

7.) How do you read a direct reading titrator? Each division is 2.