Mathematics and Society - OS X Lion Server

FI X TfiAT L(AK~ t t ~ ~Materials Needed:Graduated beakerWatch with a second handCalculator, if availableActivity: (1) (a) Turn on a faucet so it drips at asteady rate.(b) Count the number of drops fallingfrom the faucet in 30 seconds.Repeat the count for accuracy.The water is dripping at a rate ofdrops per______ drops per hour.______ drops per day.(2) (a) Measure the volume of 100 drops of water in millilitres.(b) Use the data above. The faucet is dripping at a rateof _ millilitres per minute.millilitres per hour.millilitres per day.millilitres per year.rate is equivalent to a rate oflitres per year.__(3) Call your local water board to find the rate charged forresidential water use. (The rate will probably be dollarsper 1000 gallons of water. 1 litre = .2624 gallons.) Howmuch money is wasted by this dripping faucet in one year?225