Splish, Splash, I Was Takin' a Bath!
The world's water supply.Copyright US Environmental Protection Agency http://www.epa.gov/seahome/groundwater/src/supply2.htm
Through the use of models and scientific investigation, students explore the causes of water pollution and its effects on the environment. Through the two associated activities, they investigate filtration and aeration processes that are used for removing pollutants from water. They also learn about the role of engineers in water treatment systems.
To benefit society, engineers design and build systems to keep our global water supplies clean. This requires that engineers investigate the water source, and route it travels before it is used by people, and study previous methods that have successfully cleaned our water supplies.
After this lesson, students should be able to:
- Explain the role of engineers in water treatment systems.
- Describe how contaminants leach into the soil and ground water and how they are absorbed by plants.
- Explain the natural water filtration process.
- Examine how much water is consumed by humans in a lifetime.