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Welcome to the Sustainability Lesson Clearinghouse

Here, you can find free sustainability lessons to use in your class and upload your own lessons to share. Be sure to rate the lessons you use and leave comments for your colleagues!

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Sustainability Lesson Clearinghouse

Ecosystem Services - Water Purification

Lesson Description:
This lesson was developed to highlight natural water purification as one of many services that healthy ecosystems provide for people. It covers types of water pollution, the watershed concept, and the problem of non-point source pollution. Students will research their own watershed and investigate natural water purification within it. The lesson is suitable for middle school. It is correlated to the benchmarks for science literacy and was created by science netlinks, a program of the american association for the advancement of science.
Lesson Type:
  • Project

Sustainability Topic:
  • Water

GEF Program Category:
  • Sustainable Water Challenge

Time Needed:
A day
Standards Addressed:

5d interdependence of life #1

  • In any particular environmnet, the growth and survival of organisms depends on the physical conditions.

11a systems #1
  • A system can include processes as well as things.
11a systems #2
  • Thinking about things as systems means looking for how every part related to others.

11a systems #3

  • Any system is usually connected to other systems, both internally and externally.

Materials Needed:
  • Computers and internet access

School or Group:
Science Netlinks
Contact Email:
Located in: Health

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Center for Green Schools