In this graph we can see that as the elevation increases, the conductivity normally decreases.We think that this is so because as it is higher up, the rain does not go through the mountains as much and just falls into the reservoir. Also we can see that here can be a very wide range of conductivity charge in a certain area.
We can see that there is a pattern between pH and elevation. This pattern is that as the elevation gets higher the pH normally decreases. We think that this happens for two reasons. One of these reasons is that if it is a lower elevation it has traveled down hill and seeped through rock, soil, and sand, making the water more nuetral. Another thing that could cause this is that in a lower elevation it can sit more and so the carbon dioxide can be released into the air and the acids and bases are released.
Hpothesis: The distilled water gets filtered through the rocks and soil and becomes more acidic.
Experimental Plan- As we have to test an experiment to show that as water goes down the rocks and soil it becomes more acidic, we decided to use soil, rocks, and distilled water. The way we did our experiment was:
- First we tested the pH of the distilled water.
- Then we went to get some soil and rocks and filled a plastic bag half way with them.
- Then we poured the distilled water into the plastic bag with the soil (we made sure that the plastic bag had a hole at the bottom, so that the water could come out)
- Then after a decent amount of the water had come out of the soil we tested the pH of that substance.
Results- We noticed that after we tested our experiment the pH of the water increased from 6.2 to 7.02. We also noticed that the water collected some particles from the soil and rocks.
Conclusion: As the water went through the soil and rocks the pH increased. We think that this is because there are some rocks, such as limstone, which nuetrolize water. This is because limestones are made with shells of diatoms, which contain a lot of carbon, which helps to nuetrolize water.