Aislamiento – El que no pertenece

The video tutorial discusses different materials: polystyrene, steel wool, and cotton. It identifies steel wool as the material that does not belong with the others because it is not a good insulator, unlike polystyrene, cotton, and straw, which are effective insulators.

List the materials mentioned in the text and categorize them as good insulators or not.

Can you explain the difference between good insulators and materials like steel wool?