- Describe the effect of high temperature on selected plastics
- Compare the thermal stability of plastic materials with the thermal stability of selected natural materials (cotton, metal, wood)
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- Beaker, burner, matches, polyethylene (PE), polypropylene (PP), polyvinylchloride (PVC), polystyrene (PS), cotton, metal and wood
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- Carry out an experiment in which you will observe the change of shape of thermoplastic in boiling water. Compare the change with that of selected natural materials.
- Put the appropriate plastic, cotton, metal and wood into boiling water and close the container. Take them out of water some minutes later and write your findings into the table
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