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water to the students and explain this represents all of the usable water on
earth—less than 1% of the earth’s total water is in a usable form that we
can get freshwater from (in lakes, rivers, streams, wetlands and
groundwater aquifers)
5. Together come up with a list of reasons why water is important. Review
concepts covered with a brief questions/answer session
Take Home Activity: Water Tally
(taken from National Geographic Rivers 2001 Program)
1. Pass out a copy of the National Geographic Water Tally Sheet to each
student.
2. Tell the students to keep track of how much water they use for the next
week (until the next afterschool session).
3. Tell the students to follow the sheet, to measure their water use each day
for the entire 1 week period.
4. Next week, when they come back, you will check their tallies to see how
much everyone used.
5. Last, discuss ways we can save water. Ask students to select one thing they
can do at home to conserve water. Encourage them to try this for 1 week.
Make a list with them on the dry erase board.
Some of these ways include:
� Turn off water when brushing teeth
� Limit shower to 10 minutes
� Only fill bathtub ½ full
� Run dish or clothes washer only with full load
� Fix leaky faucets
� Put a capped bottle of marbles in toilet tank to reduce flush water
6. Have the students report back on their water use and conservation at your
next after-school session.
Activity Sheets With This Lesson:
National Geographic Rivers Water Tally Sheet