Teacher manual for Advanced Environmental and Earth Sciences labs. Has both the printed version and a flash drive with teacher tips, a PDF of teacher version and editable Word student version.
Use pH, conductivity, and turbidity sensors to demonstrate how water treatment processes such as filtration, flocculation, and sedimentation improve water quality.
Students demonstrate how water treatment processes such as filtration, flocculation, and sedimentation improve water quality.
Students will gain experience conducting the following procedures:
- Evaluating water treatment processes using direct observation and by measuring conductivity, pH, and turbidity.
- Using test results to design, build, test, and evaluate a water treatment process.
Sensors / Equipment Used:
MultiMeasure sensor that incorporates pH, conductivity, temperature, and the optical dissolved oxygen probe.
Measures the turbidity level (cloudiness) of water in nephelometric turbidity units (NTU). For use with PASPORT Interfaces.
Activated charcoal - 2 g
Balance - 1 per class
Beaker, 150-mL - 4
Beaker, large ("wastewater" container)
Graduated cylinder, 100-mL
Graduated pipet, 50-mL, and bulb
Lint-free lab tissue box
Paper napkins, dinner, white, smooth - 12
Paper towels, white - 4
Soda bottle, empty, 500-mL
Swimming pool water clarifier solution, 4% - 2 to 4 mL
Test tube, 18-mm OD or greater
Wash bottle containing water
Wastewater sample (made from coffee, soil, and kitty litter if the soil has a low clay content) -500 mL
Water - 300 mL
The Associated Bundle:
Standard bundle for Advanced Environmental and Earth Sciences Teacher Guide,