Bullfrog Films
10 minutes
Study Guide
Grades 4-8

Directed by Lisa Hardmeyer

VHS Purchase $59
US Release Date: 1997
Copyright Date: 1997
VHS ISBN: 1-56029-725-5

Subjects
Children's Films
Design
Ecology
Science
Technology
Wetlands

Awards and Festivals
DESIRABLE: California Instructional Technology Clearinghouse
Planet Neighborhood: Classroom Modules Series
Wetlands Technology

Artificial wetlands purify waste water.


This inspirational short film looks at the progress being made in the creation of artificial wetlands, and the ground-breaking work of John Todd and his "living machines" - concrete cylinders filled with a variety of plants and life forms that purify waste water and are beautiful to look at.

Other titles in the series are:

The Home - Families can reduce air pollution and save money.

The Car - Automobiles designed for recycling.

Web Page: http://www.bullfrogfilms.com/catalog/pnc3.html