Laboratory Report on the Effect of Acid Rain

1. ProblemAccording to an article, Acid Rain, by Novi Meadows Elementary, acid fall occurs in many part of the world, no matter the climate difference. It is harmful not only to non-living things simply especially to living things. It push aside affect humans, sea life and forests. This is because when the purlieu become too vitriolic, some living things die, like fish. Acid rain is formed when the pH, which is the measurement of sullenness and basicity, of water is lower than 5.6.In relation with this, the mathematical sort would like to investigate the effect of acidity on various shed crops by varying the pH aim of its surroundings.2. HypothesisThe amount of source germination will decrease as the surrounding of the seminal fluids gets lower pH level, or becomes more acidic.3. ProcedureThe effect of varying pH levels on the germination of tercet different cum crops, genus genus Triticum aestivum (Wheat), genus genus Phaseolus sp. (Mung Bean) and genus genus Zea m ays (corn) were investigated. Each group counted 25 seeds and placed them in petri dishes. Next, 20ml of solution of desired pH level (1, 3, 5 and 7) were poured into the petri dishes containing the seeds. The seeds were then observed for seven days wherein morphological changes in the seeds were noted. At the end of seven days, the number of seeds germinated in the petri dish was counted and the plowshargon of seed germination was calculated. The data was then compared with the other groups.4. ResultsT open 1 down the stairs shows the data gathered from the experiment. From the table, it canTable 1. Percentage of seed germination of Triticum aestivum (Wheat), Phaseolus sp. (Mung Bean) and Zea mays (corn) in pH levels 1, 3, 5 and 7.pH level Percentage of seed germination Triticum aestivum(Wheat) Phaseolus sp.(Mung Bean) Zea maysbe seen that there was 0% seed germination for Triticum aestivum in pH levels 1, 3 and 5. This is because in super acidic environments, the cells in the s eed are unable to absorb the nutrients it take to grow. In accordance with that, there was also 0% seed germination at pH level 1 for both Phaseolus sp. and Zea mays.At pH level 3, there was 12% seed germination for Phaseolus sp. and 4% for Zea mays. This means that the seeds of these plants can grow in semi-acidic environments. However, it can also be noted that at a less acidic environment, pH level 5, the percentage of germination for Phaseolus sp. and Zea mays increase to 60% and 12%, respectively. This probably means that the cells of the seeds of the two plants are able to absorb more nutrients in less acidic conditions.On the other hand, at pH 7, the seed germination of Phaseolus sp. and Zea mays decreased to 28% and 0%, respectively. Probably these two plants cannot properly absorb the nutrients needed in a neutral condition. Interestingly, though, it is only at this pH level that Triticum aestivum begins to germinate. This means that it is only at this point that the condi tions for seed germination are favorable for the seed.According to the article, Soil Facts Its What We Dont See That Counts, by FrostProof.com, different plants require different pH levels to properly absorb the water and nutrients it needs. This is probably the reason why the maximum percentage of seed germination for each plant was in varying pH levels 16% at pH 7 for Triticum aestivum, 60% and 12% at pH 5 for Phaseolus sp. and Zea mays, respectively.5. ConclusionFrom the results of the experiment and as stated in the hypothesis, it was concluded that the amount of seed germination will decrease as the acidity of the surrounding increases. In relation to this, acid rain could inhibit the growth of plants especially if its acidity is too high.Works CitedFrostProof.com. Soil Facts Its What We Dont See That Counts. FrostProof.com. 6 November 2007 Novi Meadows Elementary. Acid Rain. 2002. Oracle cultivation Foundation ThinkQuest Library. 6 November 2007