Curated and Reviewed by
Lesson Planet
Both soft raincoats and hard door frames use PVC as their main components, yet they have very different textures. The video focuses on the use of plasticisers and hardeners to create the very different textures and uses for the same material. It highlights many different products and discusses the pros and cons of these processes.
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CCSS:
Adaptable
Additional Tags
Instructional Ideas
- Research the environmental concerns of using plasticisers and hardeners
- Create a timeline of when people first used these, when scientists first found they caused cancer, and when regulators banned their use in baby bottles
Classroom Considerations
- Relies on prior knowledge of polymers including their chemical structure, functions, and applications
Pros
- Mentions the ethical and environmental concerns
- Offers a cue to pause the video and think through a higher-level question
Cons
- None