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Acid rain introduction essay
An essay on acid rain
An essay on acid rain
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On October 6th, our school went on a field trip to the Conodoguinet Creek. We were not there to mess around but, we were there to do an experiment. Acid rain and eutrophication are two big problems in our area, and we as scientists went to the creek to see what the levels are of the creek. My hypothesis going to the creek was, if we test the creek for signs of pollution, then we can figure out how polluted the water is. Before going I did some back research and I thought that the creek was polluted before going on the study. With all the research I gathered we can see if the creek is polluted or not.
One of the experiments on trip was to test how fast the water was moving. Our group stood in nine different locations and did the testing. My hypothesis was if the water is deeper, then the water velocity will be faster. After the group did that, the group collaborated results, giving people the other answers so they can fill in their data sheet. Now the results will vary depending on what group you are in, and it can vary from all of us walking in and around the creek. As you can see on the left is the graph of all the data. The scatter plot indicates that my hypothesis is incorrect because if you look at it as the depth gets deeper, than the speed or velocity of the water goes down.
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First test you will see if the phosphates test. All together, the average of the test was 0.3 ppm. Which in that case is good showing that there is not much eutrophication in the creek. My group personally did a nitrates test. Our group got about 0.4 ppm. On average the tests were around 0.8 ppm. Like the phosphates that means that there isn’t much eutrophication in the creek. Another test we did was a dissolved
The main problem was lead, with seven well samples showing up positive. The calcium and nitrates both had four samples showing up positive. Hydrocarbons had 3 samples showing a positive. Heavy metals have two positives,and bacteria had only 1 positive. Many men, women, and children are getting sick from horrible water pollution and some of the water pollutants cause cancer! So through all thirty of the tests we ran we got twenty one samples back that gave us a positive result. In conclusion the water in Hickory Hollow is justified, showing various
The data we found supported our original water hypothesis. My group and I believed that adding ammonium nitrate into our eco-column would ultimately damage the ecosystems. The increase in levels of minerals from the aquatic ecosystem also indicates that the entire column was being destroyed. Through this experiment, I have learned that too much nutrients and minerals within an ecosystem can be extremely harmful to the wildlife. Throughout this experiment the water in our eco column began to turn yellow because of a surplus of nitrogen and phosphorous in the eco-column. In some of the eco-columns of the other groups in the classroom, they had eutrophication in the early stages of their eco-column which resulted in the death of many of their
The purpose of this experiment was to identify which brand of mint gum holds its flavor the longest. The four brands I chose were Orbit, Trident, Ice Breakers, and Wrigley's Doublemint My hypothesis was that Trident brand would last the longest and Wrigley's Doublemint would last the shortest. I did not use any people in my test. I chewed the same amount of gum at a time and the gum was all the same flavor, mint. All the gum was bought at the same time from the same store. I chewed the four brands of gums between periods of time. When chewing, I timed myself with a stopwatch. When I believed the gum ran out of flavor, I stopped the timmer and recorded the time. My hypothesis was incorrect. Instead of Trident, Orbit lasted the longest. However
In the experiment “ Talking to plants “ from Mythbusters, potential problems include the use of greenhouses with no sound insulation, a non-homogeneous location and the use of only one specie to infer on a population. In another scientific study, researchers chose to use “ a noiseless growth chamber to prevent any effects from extraneous noise “ and the use “ growth chambers under continuous light at 28 c and 65-75% relative humidity “ in order to maintain a homogeneous location for all plants during the experiment (Jeong et al., 2008) . This helped further explain the findings because with the use of noiseless chambers you can assure that the only noise that the plant was receiving was the one given in the treatment and a valid conclusion
In conclusion the experiment was carried out and had great success proving my prediction to be correct and enabling solid and valid results which were able to be put in a graph. I believe my prediction could have been more accurate or more backed up if I had made a quantitative prediction. Though what I believed would happen did happen during the experiment which helped to understand the graph and the results which led me to be able to write a thorough report on them.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
Although the story “An Occurrence at Owl Creek,” is ironic, there are other literary elements represented in the story. Perhaps Ambrose Bierce’s most famous works, he used imagery from his own personal experiences in the Civil War, which adds to the suspense of the short story. Imagination is a difficult word to define. The ability to have a daydream, or picture with vivid details, is what imagination could be. An imagination is key for some people, who escape real life into a fantasy world. Bierce's “An Occurrence at Owl Creek” uses point of view, structure, and symbolism to show the power or capability of imagination.
On December 22, 2008 in Roane County, Tennessee, the Tennessee Valley Authority (TVA) Kingston Fossil Plant had a dike rupture releasing more the 5.4 million cubic yards of coal ash into the Emory River. There were no recorded deaths or serious injuries , but the surrounding ecosystem was affected severely. The ash slurry contained heavy metals such as arsenic, barium, chromium, mercury, nickel and many more, all of which were released directly into water the ways. Preliminary tests of drinking water showed that the toxins did not affect it, however later individual organizations tests show high amounts of arsenic and other toxins in the water. Officials say that the discrepancy is due to original water test being done before the polluted water had a chance to reach Tennessee Valley Authority, water treatment plant. Authorities claim that the reason for the dam failure was due to the high rain fall and subzero temperatures. However, local residents are saying that they’d observed leakages ever since the plant was opened, as well as...
The experiments were quite simple, in that there was a seemingly harmless task to be performed, and the participants were instructed to choose the estimation of the lengths of a line when compared to two ...
n hypothesis of the experiment is that the group containing four members will perform better than the group containing two members. This is the foundation from which we have conducted our experiment.
The null hypothesis at the inception of this lab stated that the breathing rate of a gold fish would not be effected with decreased water temperature around it. The alternate and working hypothesis however stated that decreasing the water’s temperature will decrease the goldfish’s breaths per minute. After preforming the experiment, my results support my original hypothesis as the fish’s breaths per minute did drop when the water temperature lowered. In my group’s experiment, the fish’s breathing rate stayed constant after only decreasing the temperature by 5 ◦C, the breathing rate then plummeted once the water temperature was at 10 ◦C. As a total class, the experiment further supported the hypothesis with the breathing rate per minute dropping
In the experiment we have a time taker, tapper, and 3 observers. The tank should have a black line straight down the middle of it, however, if the 10 gallon tank does not already have a line down the central part of the tank, take a sharpie and draw one exactly down the middle. Once you acquire the tank make sure there are 8 fish in the tank, if not, position 8 fish in the tank. The first trial that was done required the tapper and the time taker with 3 observers. The tapping began for 10 seconds while the fish behavior was observed by the 3 of us observers. After the 10 seconds the results were verified and discussed among the observers. There was an elimination period for 1 minute, and trial 1 was repeated again for the second time making it trail 2 for 20 seconds. The results were documented once again and discussed. The second trail that was done required a little more focus to assure the tapping and placement was the same as the one before. After 20 seconds the results were recorded. There was a rest period for 1 minutes, and trial 2 was repeated making it trial 3 for 30 seconds. The results were
...sed, the stopwatch has to be reset and both classmates have to prepare for the next trial. These may only cost a few seconds but during these few second (time gap) the stem of the hydrilla has continued to release bubbles which we haven’t counted them which can affect the data because fewer bubbles were counted. We can improve next time by asking more people to help us with the timing. For example, after 1 minute when the 1st trial finishes, one student stops his/her stopwatch and simultaneously another student starts his/her stopwatch simultaneously. There is also an error shown in the graph. The mean of rate of bubbles per minute is expected to have a continuous increase but it decreases 0.33g starting from 8.0g to 10g. The results may not be accurate due to this. I can improve next time by conducting the experiment for several times until I get the relevant data.
Our hypothesis for this lab was that the limestone will add mass because it is a sedimentary rock, and weathering and erosion break down a rock. Our data refute our hypothesis because we said it will gain mass when the limestone lost mass. The limestones Initial mass was 3.67, and after we put it in the oven the mass went down too 2.81. The mass went down by 0.86. Also, the graph above shows our data. The red line of the graph was the change in mass after we put it in the oven, and the blue line is the Initial mass. The red line doesn't move that much. After we put the rocks in the oven only one changed in mass. The Limestone changed 0.86 in mass, Quartzite changed 0.00 in mass, and Obsidian changed 0.00 in mass. By that data the oven did not really change the difference in mass. The blue line is our initial mass. Limestone was 3.87, Quartzite was 67.51, and Obsidian was 10.63. In the graph it shows the blue line going up. Our initial mass goes up, but our final mass stayed the same besides the limestone changed by 0.86. In the graph there were two trends. One goes up, and the other one basically stayed the same. The initial mass had a bigger impact because we used 3 rocks, and they were different masses. For the final mass the trend wasn’t that good because two of the final masses stay the same at zero, and the one that changed in mass was only a 0.86
Water Pollution is a current issue that has serious consequences; it progresses everyday in our lakes, oceans, rivers and other bodies of water.