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Less than one percent of the earth's water is available for human use. A hands-on activity models the phenomenon for young scientists. Beginning with a specific volume of water, learners remove water that correlates to the percent of their volume that is in areas that are unavailable to humans: oceans, ice caps, salt lakes, etc. What they have left is less than one percent of their original volume.
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Instructional Ideas
- Post the infographics as a reminder of the limited water supply
- Have pupils record their water usage over several days and compare results
Classroom Considerations
- Allow time to collect and prepare necessary materials
Pros
- Adaptable to a wide range of grade levels
- Includes sample reflections questions
Cons
- None