Students will calculate the percentage of fresh water available for human use and explain why water is a
limited resource. By estimating and calculating the percent of available fresh water on Earth, students understand
that fresh water is limited and must be conserved and protected.
Students will discuss why clean water is important. Students will evaluate the “powers” needed to improve water quality around the world.
Students will experiment with different ways to purify water.
* Identify sources of fresh water available for consumption
* Understand the need for water conservation due to the limited fresh water supply
* Explore strategies for conserving water at home
* Compare the benefits and drawbacks of using different water management techniques, particularly dams