Winogradsky Column Unit: Chemical and Physical Change

Yevgeny Pevzner, Sharyn Annette Shelton, Westminster College Great Salt Lake Project

This two-part activity leads Physical Science students, grades 8-12, to explore chemical change using Winogradsky Columns. Part 1 constructs student concepts concerning chemical and physical changes. Part 2 asks students to compare physical versus chemical changes and observe chemical changes in a Winogradsky Column, and teaches them to build their own column. It includes the following student pages: introductory lesson, Winogradsky Column lesson, challenge your thinking activity sheet, how to make a Winogradsky Column, how to create an observation journal, and journal evaluation sheet.

Subject: Biology:Ecology:Principles, Biology:Biogeochemistry, Microbiology, Environmental Science:Ecosystems:Biogeochemical cycling
Resource Type: Activities:Classroom Activity, Lab Activity
Grade Level: High School (9-12), Middle (6-8)
Topics: Biosphere:Biogeochemistry, Microbiology, Chemistry/Physics/Mathematics, Biosphere:Ecology:Principles, Energy/Material cycles