Curated OER
Investigation of Crystallinity in Polymeric Materials
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...
Curated OER
Phase Transition Temperature of Fats
In this chemistry worksheet, students investigate through experimentation the solidifying behavior of some edible fat mixtures by determining their cooling curves. Then they data-log equipment to obtain a large number of temperature...
University of Pennsylvania
University of Pennsylvania: Solid State Chemistry: Describing Crystalline Solids
This site contains in-depth information on crystalline solids. Includes basic concepts, pictures, learning graphs, and useful tools.
Michael Blaber, PhD
Florida State University: Intermolecular Forces: Structures of Solids
Article from Michael Blaber and Florida State University. Amorphous and crystalline solids are compared and contrasted. The unit cell arrangements and the packing of unit cells into crystalline solids is explained and colorfully...
Science Struck
Science Struck: Salt Crystallization
Learn how salt crystallizes and the weathering effect that this has on rocks and on structures.
Science Struck
Science Struck: How to Grow Alum Crystals
Provides instructions on how to grow an alum crystal.
Science Struck
Science Struck: Crystalline vs. Amorphous Solids: The Difference?
Explains the difference between crystalline and amorphous solids and describes the properties of each.