Our Water, Our Data: Southwest Florida Water Quality Investigation

The goal of this project is to transform water-quality instruction from a classroom concept into an authentic environmental investigation. Students will use scientific field instruments to collect quantitative data about aquatic environments and use that evidence to evaluate water quality and ecosystem conditions. Students will develop practical experience measuring dissolved oxygen, pH, conductivity, temperature, nutrients, turbidity, and water clarity while learning how these variables interact within marine, estuarine, and freshwater ecosystems. The project will strengthen students’ skills in scientific inquiry, instrument calibration, experimental design, data analysis, graphing, evaluation of error, and evidence-based reasoning. By collecting and interpreting their own environmental data, students will connect concepts from AICE Marine Science and Chemistry to the aquatic environments of Southwest Florida while developing laboratory and field skills that reflect authentic environmental science.

Students will work in small field and laboratory teams to investigate the physical and chemical characteristics of water. Before collecting data, students will learn how to properly calibrate scientific instruments, select appropriate units, develop consistent sampling procedures, record environmental conditions, and distinguish between accuracy, precision, and experimental error. Students will use digital meters to measure dissolved oxygen, pH, conductivity, and temperature. They will use a Secchi disk to investigate water transparency and light penetration and educational water-quality test kits to analyze additional variables such as nitrate, phosphate, turbidity, biochemical oxygen demand, and coliform bacteria. Whenever appropriate, students will compare samples from different freshwater, estuarine, coastal, or classroom aquatic systems. Student teams will collect replicate measurements, organize their results into data tables, create graphs, compare sampling locations or conditions, and investigate relationships among environmental variables. Students will then use their results to construct evidence-based conclusions about water quality and ecosystem health. They will also identify limitations in their methods, sources of uncertainty, and improvements that could make future sampling more reliable. Rather than completing a laboratory activity in which the expected result is already known, students will work with real environmental samples whose results must be interpreted from the evidence they collect.

Students will gain hands-on experience using scientific instruments and collecting environmental data rather than relying solely on textbook examples or teacher demonstrations. The project will strengthen students’ ability to conduct investigations, calibrate equipment, collect repeatable measurements, organize quantitative data, construct graphs, recognize trends, evaluate experimental uncertainty, and defend conclusions using evidence. Students will also develop a deeper understanding of the relationships among water chemistry and aquatic ecosystem health. For example, they will be able to investigate how dissolved oxygen, conductivity, pH, nutrients, temperature, and water clarity can vary among environments and consider biological or environmental factors that may explain those differences. The equipment will allow multiple student groups to participate directly in data collection, increasing student ownership and reducing the amount of time students spend simply observing another group use an instrument. Student learning will be demonstrated through field data sheets, laboratory reports, graphs, data-analysis assignments, instrument-calibration records, project reflections, and AICE-style evaluation questions. Students will be expected to identify patterns in their results, evaluate limitations in their methodology, and support environmental conclusions with quantitative evidence. Most of the requested equipment is reusable and will establish a long-term water-quality monitoring capability for the classroom. As a result, this grant will benefit not only this year’s students but future Marine Science and Chemistry classes as well.

Grant funds will be used to establish a reusable student water-quality investigation system consisting of a digital dissolved-oxygen meter, digital pH meters, digital conductivity meters, educational multi-parameter water-quality testing kits, a Secchi disk, waterproof field notebooks, and weather-resistant field clipboards. The dissolved-oxygen meter will allow students to quantitatively investigate one of the most important indicators of aquatic habitat conditions. The pH meters will provide accurate measurements for investigations involving water chemistry, acids and bases, and environmental conditions. Conductivity meters will allow students to investigate dissolved ions and compare the conductivity of different water samples. Two multi-parameter water-quality kits will expand these investigations to include variables such as nitrate, phosphate, turbidity, biochemical oxygen demand, coliform bacteria, dissolved oxygen, pH, and temperature change. Having two kits will also allow more student groups to participate and provide additional testing capacity for repeated investigations. A Secchi disk will allow students to measure water transparency and investigate the relationship between suspended material, light penetration, and aquatic environments. Waterproof field notebooks and field clipboards will allow students to safely record observations, measurements, sampling conditions, and other data during outdoor investigations where ordinary classroom paper and notebooks can easily become damaged. Together, these materials will create a coordinated field-science system rather than a collection of unrelated laboratory supplies. Students will be able to collect environmental samples and measurements, compare multiple water-quality variables, analyze their results, and use quantitative evidence to evaluate aquatic environments. Because the primary instruments are reusable, the funding will establish a resource that can support AICE Marine Science, Marine Science, and relevant Chemistry investigations for multiple years.

857.36

Milwaukee MW600 PRO Dissolved Oxygen Meter

328.90

2 Apera Instruments PH20 Pocket pH Tester Kits

144.00

2 Apera Instruments EC20 Conductivity Tester Kits

158.00

2 LaMotte Earth Force Low-Cost Water Quality Monitoring Kits

126.70

Fieldmaster 20 cm Secchi Disk Kit with 20 m line

31.48

2 Rite in the Rain 4.625" × 7" weatherproof field notebooks

20.38

2 Rite in the Rain No. 295 Weatherproof Field Desk/Clipboards

47.90