+
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...
+
Worksheet
Curated OER

Phase Transition Temperature of Fats

For Students 10th - 11th
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...
+
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.
+
Handout
Michael Blaber, PhD

Florida State University: Intermolecular Forces: Structures of Solids

For Students 9th - 10th
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...
+
Handout
Science Struck

Science Struck: Salt Crystallization

For Students 5th - 8th
Learn how salt crystallizes and the weathering effect that this has on rocks and on structures.
+
Activity
Science Struck

Science Struck: How to Grow Alum Crystals

For Students 9th - 10th
Provides instructions on how to grow an alum crystal.
+
Handout
Science Struck

Science Struck: Crystalline vs. Amorphous Solids: The Difference?

For Students 9th - 10th
Explains the difference between crystalline and amorphous solids and describes the properties of each.