Earthworms
Subtitle: teacher's guide
By: Robert C. Knott
Series: Great explorations in math and science; Great explorations in math and science
Publisher: Lawrence Hall of Science, University of California
Published: 1989
Place of publication: Berkeley, Calif
Language: eng
Number of pages: 41
Subjects: Earthworms -- Experiments
Other titles: GEMS
Notes: For grades 6-10