Shadows
Subtitle: an environmental investigation
By: [edited and published] by National Wildlife Federation ; [written by] Minnesota Environmental Sciences Foundation, Inc. ; designed and illustrations by Jan Blyler
Contributors: Blyler, Jan; National Wildlife Federation
Series: Environmental discovery series
Publisher: The Federation
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 12
Subjects: Natural history -- Study and teaching (Elementary); Science -- Study and teaching (Elementary); Shades and shadows
Description: Designed to enable students to discern spatial relationships by exploring shadows