Lab packages for water and soil demonstrations.
Developed to reinforce key concepts introduced in lecture materials on drinking water treatment and water and soil environmental studies. Teacher manual includes tips on organizing the lab demonstration, introductory information on each test factor and suggestions for additional experiments.Water Treatment Lab investigates odor, color and turbidity of drinking water and water treatment processes.Tapwater Hardness Lab measures the hardness of a known sample and demonstrates the aesthetic effects of drinking water.Water pH Lab demonstrates the importance of pH and how it is adjusted in various water samples. You can create your own demonstrations using various household items.Dissolved Oxygen Lab demonstrates the importance of dissolved oxygen in natural waters. Create your own samples, relating the importance of temperature to oxygen saturation.Soil pH Lab helps you determine soil pH of known samples as well as your own samples.Soil Texture Lab separates the sand, silt and clay fractions of a known soil sample. Determine the soil texture of a soil sample from your own garden.Soil Nutrients Nitrate Lab, Soil Nutrients Phosphorous Lab and Soil
Nutrients Potassium Lab review the importance of these nutrients and their affect on plant growth and nutrition. Soil samples included.Nutrients in Water Lab measures nitrate and phosphate in prepared samples. Learn the importance of these nutrients as pollution indicators.
Each Lab includes a teacher manual, introductory information, reproducible student procedures/data sheets, apparatus and reagents for 25 demonstrations, soil samples for all units and reagent composition information. Grades 5-8.