Yevgeny Pevzner, Sharyn Annette Shelton, Westminster College Great Salt Lake Project
When last checked this resource was offlineOur automated link checker has alerted the folks responsible for the part of our site where this problematic link is referenced.
If you have further information about the link (e.g. a new location where the information can be found) please let us know.
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.