Mathematics and Society - OS X Lion Server

(1. Is there water pollution in your neighborhood or school area? Look for informationin Consumer Reports for charts about detergents and their amount of phosphates.Select a group of private homes and interview people for the following information:brands and amount of detergents used per month. Figure the amount of phosphate fromcharts and estimate the amount of phosphate pollution for your city. Is it enoughto affect the water?2. Call the local water board to get the monthly use rates by the total city population.Use an appropriate graph to display the 12 months of information. It may be possibleto do a double graph, where both this year's and last year's use can be compared.3.4.If there is a water tower familiar tothe students, it is interesting to knowits capacity. Call the city engineeror the industry involved to find out 15its volume. How much water would each ~student get if the water in the tower ~were divided up? How many swimming jpools would the water in the tower fill? \.. 10A short activity like the followingmight lead to an exploration of localstreams, fish population data, watersources and sewage, methods of cleaningup polluted streams, •••o({l~ 5:3:fWAT£R COI-lSUMPTION IN 5OMETOWl\l(:rANFEBPOLLUTION-CAUSED FISH KILLS, 1973Source of pollutionFish killed(thousands)Insec.ticides, poisons,manure drainage2,500Industry 1,800Sewage, refuse disposal 10,400Transportation 600Unknown 22,600Data from Statistical Abstract ofthe United States 1975a. How many fish were killed by pollutionin 1973?b. Were any fish in your area killed bypollution?c. Many fish are killed by unknown pollution.Why is it so hard to trackdown the sources?(228