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Long Term Water Monitoring

Experiment #13 from Investigating Chemistry through Inquiry

Education Level
High School


Water sample collection and analysis and the long-term study of a local system or environmental problem can be interesting components of a chemistry course. You will experience both in this experiment.


In the Preliminary Activity, you will gain experience using a Temperature Probe, a Conductivity Probe, and a pH Sensor as you measure the temperature, conductivity, and pH of a water sample provided by your instructor. If a Turbidity Sensor and a Dissolved Oxygen Probe are available, you will also measure the turbidity of and the concentration of dissolved oxygen (DO) in the water sample. You may or may not choose to use all five of the sensors as you subsequently research your chosen question.

After completing the Preliminary Activity, you will first use reference sources to find out more about water issues before you choose and investigate a researchable question that involves longterm data collection.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

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This experiment is #13 of Investigating Chemistry through Inquiry. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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