Determing the pH of Precipitation Samples and Observing Their Effects on Chrysanthemum Moriforlium

The purpose of the experiment was to compare the acidity level of rainwater (acidic if pH level is less than or equal to 5.6) in different areas and to compare the growth of plants (after the application of rain samples from the different areas). Plants were separated into four groups, in which each group had an application different from that of another group. One of the groups was given distilled water whereas the other three groups were given rain samples from one of three different areas in Macomb County. Each group consisted of four plants---sixteen plants total in the experiment. Data was collected over a six-week period and was statistically analyzed through descriptive tests. The descriptive analysis included box plots and line graphs to visualize the results. Different areas had rain samples that varied in pH values. Plant growth was observed as sporadic. At the end of the experiment, the extent of harm (of the applied rain samples) on the plants could not be strongly concluded. Based on previous research, however, some of the pH values of the rain samples were high enough to be a threat to the environment.

Research Done By:

Morgan Hofmann
L'Anse Cruese North High School

Helen Lee
Center Line High School