Test tap water from any source and study the impact of urban water on the city’s environment. "Wet in the City," a hands-on kit, introduces the basic concepts of water chemistry–even to kids as young as third grade! Non-hazardous TesTabs® make "Wet in the City" an easy and safe kit that’s also portable! Contains a comprehensive handbook and all necessary equipment to test for the following factors, 10 repetitions each, 5 for coliform bacteria.