R07 : The Effect of Acid Rain on the Growth of Green Plants


Students Florence Rodrigue
School IND - Appleby College - Oakville
Level Junior 7/8 - Grade 8
Group Group 1 - Earth and Environmental
Abstract The purpose of this experiment was to determine the effect of acid rain on the growth of green plants. Twelve mint plants of similar height and conditions were purchased and divided equally into four groups. Over a six-week period, a group of three plants was only given clean water, another group of three was only given acidic water and the other two groups of three were given a different amount of both clean and acidic water. The only group of plants which grew and were still alive at the end of the experiment was the control group which was only given clean water. There was a direct correlation between the amount of acidic water given and the rate at which the plants were dying. The plants that were only given acidic water never grew and died by Day 15. Based on this experiment, acidic water and, therefore, acid rain is harmful to green plants and significantly affects their growth and survival.