Plants and Pollution

Overview

Objectives/Goals The objective was to determine how different levels of pollution affected the growth of corn plants. Methods/Materials I used clear sheets of plastic to make three separate tanks, plastic glue, 27 corn seeds, car exhaust, pipes, water, a spray bottle, and pH paper. Every day, I ran car exhaust through a pipe to the tanks of plants. I polluted one of the tanks twice a day, one once a day, and one I didn't ever pollute. Results My results were that the plants with the highest level of pollution wilted and died fairly quickly. The plants with a medium level of pollution wilted a little bit, but none died. The plants with no added pollution were very healthy throughout the experiment. Conclusions/Discussion My conclusion is that pollution does have a negative affect on the growth of corn plants. My results did enable me to meet my objective, and my hypothesis was supported. One possible source of error is that I had to keep the plants outside and it got very cold at night, which could have affected how the plants grew.

Competition history

• CSEF 2010 Pharmacology (Senior Division Only) · Entry S1822

Resources

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