This lesson provides an introduction to the treatment of drinking water to remove harmful or distasteful substances. Topics include the history of treatment and a brief listing of treatment processes. Students can...
This lesson introduces students to the basics of wastewater treatment. Topics include the variety of materials that enter the wastewater system, septic tanks, and municipal treatment systems. Students can review online...
This lesson provides an overview of water use in the industrialized world, including a discussion of the increasing need for conservation as populations grow and water supplies stay roughly constant. Users can listen to...
In this activity, students will analyze their nitrogen oxide emissions from all sources (including coal-fired power plants, natural gas combustion, gas-powered lawnmowers, etc.) and combine them with vehicle emissions...
This lesson provides an introduction to the problems associated with ground-level ozone ('smog'). It reinforces the idea that ozone at ground level is harmful while that in the upper atmosphere has a beneficial effect....
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