Water may be everywhere but it is not always drinkable. Pupils research water issues, first in a local setting and then with Papua New Guinea and Australia to get a larger world perspective. Teams use the Internet and other resources to...

Did you know that only 2.5 percent of Earth's water is drinkable? An engaging video describes the process of engineering design to solve real-world problems by using a desalination plant as an example. Scholars learn about design...

Desalination requires around two gallons of sea water to make one gallon of fresh water—that's quite a ratio! Viewers consider the pros and cons of desalination as one option to providing fresh water. They learn about two different...

Can Earth's oceans produce a steady supply of clean energy? Scholars explore the uses of tidal and thermal energy in the 11th installment of a 13-part series about ocean-based alternative energy sources. Learners examine the current...

How do communities deal with the scarcity of water? Aqueducts, desalination, or recycling urine, are a few examples discussed in a video that focuses on the importance of water conservation.

Join the tree house detectives in learning about the processes of the water cycle, water conservation, water treatment, and water as a limited resource.

How does San Francisco supply its citizens with enough water, even during a drought? Learn about reservoirs and why desalination could be a good solution with a reading passage about water conservation. After kids finish the...