1.   Fresh volcanic rocks are poor conductors of electricity.

2.   Wood is a poor conductor of heat.

3.   Dry polymers are very poor conductors of electricity and can be regarded as insulators.

4.   Although durable, it is a poor conductor of heat.

5.   Air is a poor conductor of heat, and even with the ice, much of the space around the bottle is taken up by air.

6.   Normally they are such poor conductors that plastics and other polymers are the material of choice for insulating electrical wires.

7.   One problem with scaling up from current screens is that their wires are created using molybdenum and tungsten, metals that are relatively poor conductors of electricity.

8.   Pollen turned out to be a poor electrical conductor and was difficult to charge.

9.   Plastic, usually a poor conductor of electricity, has been transformed into a superconductor.

10.   Rock and solid ice are poor electrical conductors, but a salt-water ocean would be perfect.