All About Water Ecosystems/ [videorecording] Schlessinger Media; - New York: Schlessinger Media; 2001 - - Science Library .

Grade 3-5 level

young viewers will explore freshwater ecosystems such as ponds and rivers, as well as marine ecosystems.There is a water experiment and discussion on water pollution.

ISBN: 1572253975

Subjects--Topical Terms:
Water Ecosystems--Videorecording