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1993. Mary Appelhof, Mary Frances Fenton, Barbara Loss Harris. Provides over 150 carefully planned activities which use the world of worms, the environment, and natural resources to teach science, language, problem-solving and critical thinking skills. Stresses scientific method. Many experiments are open-ended to encourage further pursuit by the academically gifted. Each page (usually a specific activity) can stand alone or be used with other activities to suit the teacher's goals. Designed for grades 4-8+, with many activities lending themselves to high school situations, camping programs, environmental education centers, recycling groups, and the amateur naturalist and gardener. Includes 400 illustrations. May be photocopied for classroom use. 232 pages, soft cover.