gases and many plastic materials
Yes.
Materials that are poor conductors of heat are Plastic and Wood "example."
Poor conductors of heat are generally also poor conductors of electricity. These would include most gases, ceramics and man-made plastics. A vacuum will not conduct heat either.
Gold, diamond, rubber, and glass are poor heat conductors.
Gold, diamond, rubber, and glass are poor heat conductors.
Nonmetals in the solid state tend to be brittle and poor conductors of heat.
Silicon is a poor conductor of heat. So is
Insulation
wood
wood
yes
not all.. the only poor metal is brass..