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Small molecules can make a big impact! Pupils gain an understanding of the polymerization of ethane, a short and useful alkene. The narrator discusses the main ideas behind polymer science, including how chain length affects the product's density and thickness.
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Instructional Ideas
- Incorporate the resource into a unit about polymers or the chemistry of alkenes
- Scavenger hunt! Have students find as many items labeled LDPE and HDPE as they can throughout the school
Classroom Considerations
- Prior knowledge of alkenes is helpful for viewing the video
Pros
- Animations and structural formulas help learners see how chains of 2,000 to 20,000 units form
- The narrator links the process to several common products, such as plastic bags and bottles, to help the class relate to the process
Cons
- None