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Acid Rain Lab Acid rain is causing problems throughout the world Acid rain is precipitation that has been combined with gases in the atmosphere causing it to be slightly more acidic than normal rain Acid rain has a PH level of about 50 compared to that of pure waters 70 Acid rain is caused uniquely by human from such harmful wastes as the burning of fossil fuels This type of rain is carried throughout the atmosphere for hundreds of miles harming countryside The real question is whether or not Acid rain effects the growth or germination of plants In this experiment we are testing if acid rain effects the growth or germination of common pea seeds The independent variable in this experiment is the replica of the acid rain or the PH level while the dependent variable is the growthand or germination of the pea seeds This is a common problem in our environment today as rain continually gets more acidic Our hypotheses in this experiment were that the growth of the pea seeds in the experimental or acid rain setup would be far less than that of the normal or control setup Another would be that the experimental pea seeds would germinate slower than that of the control before starting to grow Experimental Design-Procedure Pour 30mL of water into a plastic cup Add 25mL of vinegar A total of 325mL of liquid This will lower PH to around 55 Test with PH strips to be accurate Take one piece of paper towel and soak it into the cup containing the Acid rain solution Add 12 Pea seeds equally spaced apart 13cm onto the paper towel fold and insert into a Ziploc bag To keep moisture from escaping Pour 325mL of water into a Plastic cup Test the PH using strips PH should be around 65 Soak one piece of paper towel in this PURE water Place 12
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