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General Chemistry Science Fair Project

Testing Rainwater pH

Testing Rainwater pH | Science Fair Projects | STEM Projects
Have you ever wondered how the pH of rainwater changes in different places? Join us in this experiment to find out! Collect rainwater in your neighborhood and measure its pH with test strips.


The hypothesis is that the pH of rainwater will differ from one place to another.

Method & Materials

You will collect rainwater in your neighborhood, measure its pH with test strips, and compare your findings with other students.
You will need pH test strips and a plastic 1-oz. cup for each student.


The results of this experiment showed that the pH of rainwater does indeed differ from one place to another. One observation that stood out was that the pH of rainwater was higher in areas with more industrial activity.

Why do this project?

This science project is interesting and unique because it allows students to explore the environment around them and gain a better understanding of how different factors can affect the pH of rainwater.

Also Consider

Experiment variations to consider include testing the pH of a river and other water sources in the city.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related video

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
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