Model a sewage treatment plant
Graphically demonstrate the key concepts of water treatment. Your class will get a firsthand view of the physical, chemical and biological processes comprising sewage remediation. They'll build their own water treatment plant, complete with filtration, aeration and bioremediation capabilities. Durable plastic model is accompanied by everything needed to test and treat water, including filter paper, simulated pollutants, bioremediation agents, air pump and test materials. Includes comprehensive student's and teacher's guide. Size: 13 1/4"L x 4 1/2"W x 17 1/4"H.