Laboratory Report on the Effect of Acid Rain

1. ProblemAccording to an article, acidulous Rain, by Novi Meadows Elementary, acid rain occurs in many parts of the world, no matter the climate difference. It is harmful not only to non-living things but especially to living things. It can affect humans, sea life and forests. This is because when the surroundings become too sulfurous, some living things die, bid fish. Acid rain is formed when the pH, which is the measurement of tartness and basicity, of water is begin than 5.6.In relation with this, the group would like to investigate the effect of acidity on different microbe crops by varying the pH take of its surroundings.2. HypothesisThe totality of source germination will decrease as the surrounding of the seeds gets sink pH level, or becomes more acidic.3. ProcedureThe effect of varying pH levels on the germination of three different seed crops, Triticum aestivum (Wheat), genus Phaseolus sp. (Mung Bean) and genus genus Zea mays (corn) were investigated. Each grou p 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 percentage of seed germination was calculated. The data was then compared with the former(a) groups.4. ResultsTable 1 below shows the data ga in that locationd 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 highly acidic environments, the cells in the seed are unable to plunge the nutr ients it needs to take on. In accordance with that, there was also 0% seed germination at pH level 1 for both(prenominal) 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 increased to 60% and 12%, respectively. This credibly 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 conditions 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 to each one 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 conclude that the amount of seed germination will decrease as the acidity of the surrounding increases. In relation to this, acid rain could inhibit the harvest-home 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 <http//www.frostproof.com/soilph.html>Novi Meadows Elementary. Acid Rain. 2002. Oracle Education Foundation ThinkQuest Library. 6 No vember 2007 <http//library.thinkquest.org/CR0215471/acid_rain.htm>