Analysis of charts

The data we collected is misleading.  By our data we thought that warm water held dissolved oxygen better than cold.  However, we read in the packet that this is not the case.  As the temperature of the water increases, the concentration of the dissolved oxygen decreases.  Our data was misleading due to sources of error mentioned prior (in the Winkler and Venier section). 

Our other set of data proves that the more light there is the more dissolved oxygen there is too.  However there are also some outliers here that don’t follow this trend.  These are also due to sources of error.  As you can see, it was very hard to limit sources of error in this lab.
Our third and final chart shows the results of several test on the three different types of water using the Vernier Probe. By using the probe are data became much more efficient and correct. The data with the vernier probe fell in or near the ideal levels. This really supports the fact that the Winkler method is very inaccurate compared to the Vernier probe.
                     In the data we acquired from the Vernier Probe the Canal water had the most dissolved oxygen, followed by the pond and beach waters. However this is an odd case since the Canal water was the warmest. In the first chart the Canal water had more dissolved oxygen than the beach water at all 3 different temperatures. However this trend of more dissolved oxygen in Canal water did not continue in chart two. It may because our data may be off but Beach constantly had more oxygen than Canal.