Recycling with worms
题名:
Recycling with worms
摘要:
This video shows how worms can be used to reduce garbage. It looks at the problem of garbage production and disposal and shows how to build and operate a small classroom size worm bin. Includes teachers guide with instructions on how to construct a worm bin.
出版日期范围:
1994
物理描述:
12 minutes
出版信息:
Toronto Magic Lantern Communications 1994
