Answer:

any material which allows heat to pass through them are known as good conductors of heat.

for example: iron, copper etc.

examples of poor conductors are: rubber plastic etc.

hope it will help you

Question:

What does 'good conductor of heat' mean ?

Answer:

Materials that allow heat to pass through them easily are called good conductors of heat.

Some examples of good conductors of heat:-

•Silver

•Copper

•Aluminum

•Lead

•Iron