Lesson 24: Conductors and Insulators

Material that conduct electricity and heat are called conductors while material that do not conduct electricity and heat are called insulator.

( A ) Material such as copper conduct electricity are called 

           conductors of electricity.

 

2.       (  B ) Material that conduct heat are called heat 

             conductors.

 

3.    ( c ) Material that do not conduct electricity are called 

          insulators.

 

4.     ( D )  Materials that do not conduct heat are called 
             heat insulators.