1. Corrosion of Acid Rain Juliana Lamond Grade 9

2. The Problem How does acid rain affect different materials? I wanted to see how different materials would corrode over time Would wonders of the world always be there to enjoy, how would acid rain affect them?

3. Acid Rain Pollutants go in air (sulfur dioxides, nitrogen oxides) React with water molecules Convert to acids Acid deposition- wet deposition Lack of plant growth, animals, bacteria Freshwater Buildings Takes years to show the effect

4. Hypothesis If rocks, plants, sticks, and metals are soaked in acids similar to acid rain, then metal will corrode the most.

5. Materials Gloves Eye goggles 25 ml Sulfric acid 25 ml Nitric acid 25 ml Tap water 2 plants 4 beakers Stick Rock Nail Screw Scale

6. Procedure Acidic solution was poured into various cups (the control) 25 ml each of sulfric, nitric, and water One plant was watered with solution, one with tap water Different materials were weighed and placed in cups After 24 hours, different materials were removed

7. Graphs Nail Grams Number of Hours Soaked Screw Grams Number of Hours Soaked

8. Conclusion If rocks, plants, sticks, and metals are soaked in acids similar to acid rain, then metal will corrode the most. Nail- lost.94 grams Screw- lost 3.24 grams The rock and stick did not corrode Was supported, metals corroded the most More trials The plant watered with the acidic solution turned brown and died, and the plant watered with tap water stayed healthy

9. Thank You! Effects of Acid Rain. N.p., n.d. Web. 15 Nov. 2009. http://faculty.plattsburgh.edu/thomas.wolosz/acid_rain.htm. http://faculty.plattsburgh.edu/thomas.wolosz/acid_rain.htm Essortment. N.p., n.d. Web. 15 Nov. 2009. <http://www.essortment.com/all/ acidraineffect_rqmz.htm>. ScienceMaster. N.p., 2009. Web. 15 Nov. 2009. <http://www.sciencemaster.com/ jump/earth/acid_rain.php> Sugar, Photosynthesis, and pH Tests Reveal Inhibitory Effect of Acid Rain on Hedera helix L. N.p., n.d. Web. 15 Nov. 2009.. US Enviornmental Protection Agency. N.p., n.d. Web. 15 Nov. 2009.. Conservation Association. "Acid Rain." Green Education. N.p., n.d. Web. 18 Feb. 2010..