Pollution from nonpoint sources—residential, forestry, transportation, recreation, agriculture, and construction areas—as well as from industry as a point source are simulated. Best management practices are demonstrated using felt buffer strips as vegetation, clay to create berms, and other methods to show conservation and water pollution prevention measures at work within a simulated watershed. Includes watershed/nonpoint source landscape top with clear base, detailed user's guide, plus the following materials. Kit includes:BarnBridgesBuffer StripsClay BermsCowsDrain PipeFactoryGolf FlagsHousesManure ContainerRainmaker (spray bottle)Simulated Oils, Soils, and ChemicalsTreatment PlantTreesVehiclesWater CatcherWater Plug