Acid rain occurs when air pollution affects our bodies of water, and the evaporated water is than precipitated down onto our plants, lakes, and buildings. Nitric acid and Sulfuric acid make up acid rain.On a pH scale acid rain is a, “4.0” (“pH Scale”), while compared to normal rain: “clean rain has a pH value of between 5.0 and 5.5” (“pH Scale”). A 7 on the scale is neutral and 0-6.9 is acidic while 8-14 is basic. When an acid is added to a base, and vice versa, the solution becomes neutralized. For a solution to be neutralized, the pH level would be within the range of 7: “A neutralization reaction is when an acid and a base react to form water…” (“Neutralization”). Soil usually is more acidic with a pH level of 5.5 to 7.5 (Colby). I will be using store bought soil because the soil in my area is more basic, and I have better control on the experiment. If the soil is not within this range, 5.5 to 7.5, plants growing may “have difficulty absorbing some nutrients and may be more susceptible to disease.” (Colby). Since everything in an ecosystem is a community, “If something harms one part of an ecosystem...it can have an impact on everything else” (“Effects of”). If plants are harmed, than the entire ecosystem is harmed. In my thinking, if I add bases to soil that …show more content…
One group will be watered with acid rain and have a base with a pH of 9, baking soda, in the soil. The second group will be watered with acid rain and base with the pH of 11, a lower concentration of Lye, in the soil. The third group will be watered with acid rain and have a base with a pH of 14, Lye, in the soil. Finally, my last group will be watered with acid rain and have no base in the soil. My independent variable will be changing the base of the soils. My dependent variable would be how tall the bean plant grows, the number of pods, and germination. Some limitations of the experiment would include light, temperature, and watering schedule. Since the experiment will be taking place during the winter, I will be placing the plants under a grow light in my science classroom, and since the plants are in the classroom, the plants will be warmer inside the school than outside. The temperature will vary because the school is not as hot on weekends were as it is hotter on school days. Other limitations are the watering schedule. I would not be able to come in during weekends and longer breaks to water my plants. Also I will most likely have some bad seeds, to combat that, I will be planting multiple seeds in the pot with the same