The lab correlates well with topics studied in the first semester of typical general chemistry courses. It is also appropriate for liberal arts chemistry courses. The module contains 10 parts and requires two three-hour laboratory periods for completion. The last section of the module is a self-designed team investigation. As a result of water's unique physical properties, the evolution and maintenance of life on this planet depends heavily on the presence of appropriately pure water.
Human beings can survive extended periods of time with no food but only a few days without water.
Tests include conductivity, dissolved oxygen, pH, alkalinity, hardness, and turbidity. The module includes information on sampling techniques and the storage of water samples. It also includes a thorough discussion of the chemistry behind the methods used. Sample data is given in the instructor's notes. The module is appropriate for general chemistry, liberal arts chemistry, environmental chemistry, or analytical chemistry laboratories.