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Lesson Plan
Curated OER

Investigation of Crystallinity in Polymeric Materials

For Teachers 11th - Higher Ed
A kaleidoscope is constructed using polarizing polymer paper and then low-density polyethylene, high-density polyethylene, and polypropylene are all melted onto individual glass slides and examined through a microscope. The intent is to...
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Handout
University of Pennsylvania

University of Pennsylvania: Solid State Chemistry: Describing Crystalline Solids

For Students 9th - 10th
This site contains in-depth information on crystalline solids. Includes basic concepts, pictures, learning graphs, and useful tools.