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Bullfrog Films

610-779-8226; 800-543-3764; P.O. Box 149 Oley, PA 19547
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Bullfrog Films

is a leading source of educational DVDs & videos, with a collection of over 700 titles in these main subject areas:

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It's Gotten Rotten

Classroom composting engages students in inquiry-based science.

A printer-friendly version of this page 20 minutes
Directed by David Gluck
Produced by Photosynthesis Productions
Cornell Waste Management Institute, Cornell University

This video provides a fascinating introduction to composting as a means of engaging students in inquiry-based science that is meaningful to them and to their communities.

High school students come alive as they observe the "rot riot" of invertebrates and microorganisms that inhabit a compost pile. A centipede cleaning its antennae, a pseudoscorpion searching for microscopic prey - these and a multitude of other organisms are shown in the process of making compost.

Chemistry and physics enter the picture too. Taking into account what they know about oxygen, moisture, carbon, and nitrogen needs for successful composting, students design effective compost systems for use in their classroom. They carefully record compost temperatures, and chart the intricate process of decomposition. Best of all the students and their community see the results of their efforts as they turn a vacant lot into an urban oasis.

IT'S GOTTEN ROTTEN sets the scene for classroom composting.

The teacher's guide is written by Nancy M. Trautmann and Marianne E. Krasny, of Cornell University, authors of the book Composting in the Classroom (1997).

Grade Level: 7-12
US Release Date: 1996     Copyright Date: 1996
DVD ISBN: 1-59458-863-5     VHS ISBN: 1-56029-682-8

"Buy or rent this video to show to your class or garden club...the cohesive organization...the superb close-up cinematography of primary, secondary and tertiary decomposers, and the excitement of the high school kids who are shown working with compost make it worth (the price). I highly recommend this video for science classes."
The Maine Organic Farmer and Gardener

"Well-produced and inspirational"
Video Librarian

"Introduces in a classroom setting the scientific component of composting. The video combines experimenting, observing, recording data and interpreting results with a description of the composting process."
Resource Recycling

Select your institution type

It's Gotten Rotten

"Well-produced and inspirational" Video Librarian

Links (Cornell Waste Management Institute)
Study guide

Awards and Festivals
Honorable Mention, Columbus International Film & Video Festival
SciFest, Vancouver
DESIRABLE: California Instructional Technology Clearinghouse
RECOMMENDED: The Elementary School Library Collection, 22nd Ed.

Life Science
Scientific Method
Sustainable Agriculture
Waste Management

Related Titles

A Crack in the Pavement
2-part series on how greening school grounds improves not only the school, but the surrounding community.

Here's My Question: Where Does My Garbage Go?
A fun film to teach kids about waste and recycling.

Composting without problems.

Recycling with Worms
Composting garbage made easy with a worm bin.

Green technology and innovative design save energy.

The Home
Families can reduce air pollution and save money.

Up Close and Toxic
Examines the alarming levels of pollutants inside our homes and suggests ways to reduce them.

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