Composting in the Classroom is a comprehensive guide for teachers interested in guiding composting research projects by high school students. It includes:
* an overview of the biology, chemistry, and physics of composting,
* instructions for building compost systems, including both indoor
"bioreactors" and outdoor bins,
* methods for both worm composting and thermophilic or "hot" composting,
* algebraic equations for calculating the best mix of compost ingredients,
* scientific techniques for monitoring the composting process and for
testing the properties of finished compost,
* guidelines for studying the effects of compost on plant growth, and
* advice about helping students to design meaningful research projects.
Why Composting?
Composting makes an ideal topic for scientific inquiry at the high school level because it:
* is inexpensive and requires minimal equipment.
* is multidisciplinary, involving fascinating interconnections between
biology, chemistry, and physics.
* offers a limitless range of possibilities for simple research
projects, ranging from growth of microorganisms to mechanisms of heat
transfer.
* addresses waste disposal and recycling, practical issues that are
relevant in both urban and rural communities.
* builds environmental stewardship in students, as they convert
"wastes" to a useful end-product.