Stress and Strain
Students are introduced to Stress and Strain. They design and make a concrete cylinder and beam that can withstand the greatest applied load. Students encounter a low, medium and high -tech compression tester.
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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...
11th - Higher Ed Science
Simple Tensile Testing of Polymeric Films and Sheeting
Chemistry classes pretend to be consultants to a grocery story trying to decide what polymer to use for therir new non-paper bags. They prepare tensile bars and use them to test plastic film samples for strength and stretchability. Both...
9th - Higher Ed Science
Determination of Tensile Stress-Strain Common Properties in Materials
Students demonstrate the relationship between stress and strain, then graph stress-strain curves for various common materials. Students interpret graphed results and discuss differences in mechanical properties of materials.
11th - 12th Science
Mechanics of Elastic Solids
Make the connection between Hooke's law and elasticity with an activity that introduces the class to the behavior of elastic materials. The resource defines stress and strain to calculate the modules of elasticity of materials and also...
10th - 12th Science CCSS: Designed