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	Project title	Effect of acid rain on algae
	Difficulty Level	Elementary school
	Project page	Click here to view this science project
Description
This science fair project was conducted to determine how acid rain affects the growth of algae in ponds. The science fair project was carried out on spirogyra, green algae and red algae by placing them in water of pH 5, 6, and 7 values.
Instructions preview
1. For this science fair project, the independent variable is the acidity of the water used for the experiment (pH 5.0, 6.0 and 7.0) and the type of algae – spirogyra, green algae and red algae. The dependent variable is how the algae responds and how well it thrives in the acidic solution. This is determined by observing the algae over a period of time. The constants (control variables) are the amount of water used, the amount of sunlight and the type of algae used. 2. The 9 beakers are separated into 3 groups and labeled as “spirogyra”, “green .....

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