Pass out "The
Water Detective" worksheets.
Give learners enough time to complete Section I.
They may work in groups or individuals. Ask some of the
learners to share the answers or hypothesis they have filled
in. While the group is together review how they may find
collect data to the questions in Section
II. Show the learners
the progression of equations required in part (5) What's
Drippin' by doing a sample calculation.
Part 2
Section II is homework. This homework
sheet asks learners to tally their home water use over
a 24-hour period. You may wish to send this home over a
weekend, or short holiday.
When the learners have collected their data hold a discussion
of their findings. Ask learners to compare their hypothesis
of home water use with the actual results recorded on Section
II. How many learners' families used more water than they thought?
How many used less? How many families get their water from
wells, springs, city or other sources? How many different types
of waste water systems were represented in the group? How many
families plan to fix their leaky toilets or faucets?
Water consumption in a single family home in the USA averages
50 to 75 gallons/person/day. How do the learners' families
compare to this average?
Have learners create pie or bar graphs to depict the information
the water detectives have discovered.
