EVERYDAY SCIENCE

Detailed explanation-1: -Materials that do not let current flow easily are called insulators. Most nonmetal materials such as plastic, wood and rubber are insulators. You will notice this if you have ever plugged something into a wall outlet.

Detailed explanation-2: -Wood is a natural insulator. Wood has a lower thermal conductivity compared to concrete, steel-frame and masonry construction and is ideally suited to energy-efficient design. As a natural insulator, it provides some of the world’s coldest climates with warm and comfortable dwellings.

Detailed explanation-3: -Some common insulator materials are glass, plastic, rubber, air, and wood.

Detailed explanation-4: -An electrical insulator is a material through which charge cannot flow easily. A metal wire is usually coated with plastic or rubber. The metal wire is an electrical conductor. The rubber and plastic are electrical insulators.

Detailed explanation-5: -Materials which do not allow electricity to flow or pass through it, are called insulators or poor conductors of electricity. Insulators generally have low electrical conductivity. Wood, rubber, plastics are examples of insulator.