DEPENDENT VARIABLE:
- Study of different species already there
- Amount of each in the same better or worst conditions
- Different locations
- Day difference
- Depth at all 3 locations
- PH
- Amount of dissolved Oxygen
- Temperature
- Turbidity
HYPOTHESIS:
Different organisms require different conditions. Such as salt water fish and those that live in fresh water. The salt water fish filter the salt and use it for different parts in their bodies. Verses fresh water fish. That's like putting a gold fish in salt water, they would die. They can't survive. Or like plankton different areas and plants and animals require many conditions to survive.
METHOD:
Find three different shallow water locations.
2. Take the temperature of the 3 different locations.
3.Find the pH values of all three locations
4. Take a net and see what kind of MacroInvertebrates you get.
5. Record your data.
6. Find three different deep water locations.
7.Repeat steps 1-5 for the deep water locations.
PROCEDURE:
- Collect an equal water sample from 3 of our locations
- test for DO by adding 8 drops of the manganese(II) sulfrate solution (bottle 4167) followed by 8 drops of the alkaline potassium iodize azide solution (bottle 7166) to the LaMotte sample bottle
- mix it all up and wait 3-4 minutes to allow the orange/brown precipitate to settle
- add one level of sulfamic acid (bottle 6286) to the solution you made above
- shake until all crystals have dissolved
- pour this new solution from the LaMotte bottle into the titration tube up to 20ml
- fill the Direct Reading Titrator (0337) up to the 0 mark with the sodium thiosulfate solution
- put the titrator through the hole in the cap of the titration tube and stir in one drop of titrant until the bluish color is gone.
- dump everything left over into a labeled waste container and clean with distilled water.