Final answer:
Insulators are materials that slow down or stop the flow of both heat and electricity. Resistance is a characteristic of some materials that slows down the flow of electrical current. Superconductors are a special type of material that have zero electrical resistance at very low temperatures.
Step-by-step explanation:
Insulators are materials that slow down or stop the flow of both heat and electricity. They do not allow charges or thermal energy to move through them easily. Examples of insulators include glass, plastic, and dry table salt.
Resistance is a characteristic of some materials that slows down the flow of electrical current. Good conductors, like copper and silver, have very low resistance. On the other hand, poor conductors or insulators have high resistance.
Superconductors are a special type of material that have zero electrical resistance at very low temperatures. They are able to conduct electricity without any loss of energy. Examples of superconductors include certain metals and alloys.