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Recycling Plastics by Density - Student Laboratory Kit

Recycling Plastics by Density - Student Laboratory Kit, AP7103
Catalog Number
Recycling Plastics by Density - Student Laboratory Kit
Product Description

By: The Flinn Staff

The United States produces almost 100 billion pounds of plastics every year, yet only 4% of this amount is recycled. Recycling plastics is a special challenge because of the variety of plastics in everyday use. In this student lab kit, students investigate the composition and properties of plastics and their recycling codes.

Students determine the densities of “unknown” plastic samples, identify the unknowns, and learn why sorting and separating discarded plastics helps make recycling more effective. The density range for each type of plastic (PETE, HDPE, PVC, LDPE, PP, and PS) is estimated using a “sink or swim” method in a series of liquids. In order of increasing density, the liquids tested are corn oil, 35% ethyl alcohol, water, 10% sodium chloride solution, and glycerin. An excellent critical-thinking exercise, this activity also helps students discover the fascinating uses and applications of polymers, true “giants” among molecules!

Includes reproducible student handouts, detailed background information, complete Teacher Notes with sample data and answers to all questions, and all necessary chemicals and consumable supplies.

Complete for 30 students working in groups of three.


Additional Resources
No Additional Resources at the time.
Flinn Catalog/Reference Manual Page 482
Flinn Middle School Catalog/Reference Manual Page 269
P.O. Box 219, Batavia, IL60510



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