He invented foam polystyrene, or Styrofoam. McIntire had been trying to develop a flexible electrical insulator for coating wires. Polystyrene, although a good insulator, was too brittle. He thought he could soften it by adding isobutylene under pressure, but instead made the light foamy substance.
What happened today in chemistry? Explore 366 days of chemistry history at On This Day in Chemistry.
Use this poster, fact sheet and storyboard activity to ensure your 14–16 students understand dynamic equilibrium
Solidify learners’ understanding of extraction processes with these tips, misconception busters and teaching ideas
Everything you need to help your 11–14 learners grasp the importance of finite and renewable resources
Use this lesson plan, presentation and student worksheet to recap collision theory, before going on to introduce the Maxwell–Boltzmann distribution.
Identify learning gaps and misconceptions with this set of worksheets offering three levels of support
Identify learning gaps and misconceptions with this set of worksheets offering three levels of support
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