Hazlet Middle School
Our results of the water indicated a pH of 5, the nitrates were very low, and the dissolved oxygen was extremely low to none. We conclude that due to the pH and dissolved oxygen there would be very little life. We did view some algae and microscopic creatures. Both of these were very few in number. We were surprised with our findings of nitrates. We felt that the lack of life was due more to high nitrates, but this was not the case.
Floyd Middle School
We found our hypothesis to be true. The further we went downstream the more polluted the water was. We would have liked to test the water from an area that was actually in the city of Atlanta we, however, ran out of time because our unit was only three weeks long.
I think if we did this unit again I would have liked to have had more time. I feel like we had to rush a bit at the end to get everything in.
Central Mountain High School
Central Mountain High School's final report on our six week study of the Wetland on school grounds. A paragraph summary for each test will follow, ending with the student's conclusion.
The first couple of weeks into school, the Iron levels were noticeable at 2.5 ppm. The final values had dropped to 0.5 ppm and held steady for remainder of the study. The farmland behind the wetland has slowed down in activity with the changing of the seasons, therefore decreasing the amount of disturbances underground and less particles into the water.
The temperature of the water decreased as time lapsed because of the cooler evenings and bodies of water do not change temperatures as quickly as land and air. he changing of the seasons has given us the values for temperature.
The test for Nitrates remained the same level throughout the study. Obviously, the source of water for our wetlands is not contaminated by fertilizers or pesticides. he farm behind the wetlands is basically grazing for horses, not croplands.
During the study, Phosphates remained low and stable. There was one measurement that showed an increase. We believe his may have been due to the lack of rain, and the deeper ground particles may have become dissolved into our groundwater.
The Dissolved Oxygen (DO) levels were higher than should have been, for the fact that water in a wetland is almost stagnate. The level, where we retrieved all of our other samples was to shallow for the requirements of the DO sample. Therefore, we took our samples directly below the pipe that feeds the wetland, there is movement here and allows for the increased levels of DO.
The pH of the water was certainly a surprise, staying between 7.0 and 8.0. Surrounding water ways, Fishing and Beech creeks, have been known to be very acidic, in which many people are trying to correct the problem. The ground source must not be the same for these two areas of water.
The fluctuations for turbidity reveal occasions between rain and no rain. The turbidity levels were high when we had rain, then lowered when we had no precipitation for a few days. The fact that the water hardly flows may be another reason for the changes in turbidity.
We believe the Carbon Dioxide levels are higher than should be, because of the main traveled road to the school lies above the wetland. The increase in chemical byproducts from gasoline and oil in the cars will be pulled down into the water by rain, snow, etc.
The vegetation and wildlife drastically decreased during the study of the wetland, as winter approaches. September and early October, the wetland flourished in a warm climate, therefore a number of plants and animals. As the weather gets colder and the days grow shorter, we have noticed less wildlife and insects. Most of the vegetation has died off and the wetland looks very dreary.
Basically, the conclusion to our study is the Wetland within our school grounds has been terribly disturbed by the amount of construction that has been going on for over four years. Even though we did not have 'normal' values to compare our answers, we feel our wetland is healthy and has a good future.
Edison Preparatory School
The groups from the 8th grade Coordinated Physical Science classes completed their water testing last week. They have worked hard on their projects over the last two months. In conclusion, the groups were surprised with the results they found. Several of the sites contained trash and pollution and the students thought that the levels of phosphates and nitrates would be high. The Arkansas River goes through the west side of the city where there are refineries and industries. Several groups tested water from the river and found microorganisms when they looked at their samples under the microscope. They also found ammonia. Also, Joe Creek and Crow Creek were thought to be dirty creeks and the levels of nitrates and phosphates were low or non-existent. Swan Lake houses ducks and geese and contained a lot of algae. Overall, the water projects were an excellent experience for the students and most of them said they would like to conduct more extensive tests of their sites. Thank you very much for letting us participate in the project.
Lionville Middle School
French Creek Conclusion
Our field trip to French Creek in Warwick County Park, Knauertown, PA was one that helped our 8th grade class advance in nature and science skills. We headed out to French Creek to determine if this year, the stream continued to stay a high quality freshwater creek. We hypothesized that the creek would continue to run as an exceptional freshwater creek. After taking chemical test, temperatures, weather conditions ands a kick net search, our class found that our hypothesis was correct. Our class also had to work together to collect data and complete tests and results. When we first arrived at the creek, the first thing we did was our drawings of the creek and its surroundings.
Drawing our portion of French Creek was somewhat difficult. Our area included a section where two portions of the creek combined. There was a small island in the middle of the combination and many rocks, twigs, and plants on the banks of the creek and in the water. A few feet down from the island were many rocks in the center of the stream and a chain that ran from bank to bank. After the rocks there was the area where the water ran the fastest. Next we started recording the temperatures of the air, the banks, and center of the stream. We checked the temperatures every ten minutes and found that the average temperature in the air was about 13.4oC. It was 50 percent cloudy and the cloud type was altostratus. There was no precipitation, but the wind speed was between 8 and 12 mph and it was heading northeast.
The barometric pressure was rising at the time also. When performing the Dissolved Oxygen Test we found that there was about 12mg/l of dissolved oxygen in the creek. The pH test results were both 6 on the banks and 6 in the middle.
There were many macroinvertebrates that we found at French Creek. We found 17 stonefly nymphs, 4 mayfly nymphs, 5 water pennies, 1 crayfish, 1 damselfly nymph, 1 dragonfly nymph, 1 caddisfly larva (Hydropsyche sp), 40 caddisfly larvae (Lype sp), 1 cranefly larva and 2 hellgrammites. Our group collected data very well. We all worked together and distributed the work evenly. I think that every person in the group contributed the same amount of effort during the stream study and during s school. We all worked with each other well and we did not have any conflicts. I learned that field studies require a longer process than just looking at a creek and processing your results. In fact, I did not even know that we needed to perform pH test, dissolved oxygen tests, calculated stream discharge rate, and many other tests in order to determine whether or not the stream is in good condition. I found that French Creek is definitely an exceptional freshwater creek in Pennsylvania after analyzing my results. I thoroughly enjoyed attending French Creek and realizing that there are many anew things I can learn from such an experience. I hope to return there soon, seeing as I had a great time.
Piedmont Middle School
San Jose, California
7th and 8th Grade
Science: Water Habitats
As we look back at our hypothesis we found that it was wrong. We were happy to find our pond was pretty healthy. One of the tests that hadn't been entered in our analysis was the pH. Penitencia pond is fairly neutral, which goes with the other results we gathered. When you first look at the pond, it looks dirty. Once we got close enough to really look at the water, it was not dirty, but had small green pieces of plants floating in the water. The turbidity test showed up with a little bit of cloudy water, but only 2.5 JTU's. When we smelled the water, it had a grassy smell and was pale yellow in color.
Most of the test results were good. We have some concern about the dissolved oxygen being at 7.2ppm. Good water samples that can sustain aquatic life measure between 9-10ppm. Penitencia Pond does have small fish and turtles. Our hypothesis for the winter is that the pond will increase dissolved oxygen levels. Colder water is able to absorb oxygen better. We've already seen an increase to 7.8ppm since our baseline analysis the beginning of November. We are also looking for an increase in nitrate-nitrogen levels in the spring due to fertilization of the park.
We've learned a lot about measuring and testing. We've also learned to analyze data. That part wasn't much fun. Some of us are very interested in science and like being able to do experiments outside. We hope to continue monitoring our pond and other ponds in the area for the next three years.
Thanks to the Berryessa Educational Foundation and the Intel Corporation for funding our program.