Dead air space, or motionless air.
Styrofoam is the best material to use as an insulator. Styrofoam is the best insulator, since the temperature of the water in the styrofoam glass decreased the least. If you mean what "state" of matter is the best insulator then you're probably looking for gas as the answer. The state of matter that is best as a thermal insulator is gas.
No
Something that conducts thermal energy well is a thermal...conductor. If it does not conduct well it is called an insulator.
thermal insulator
wool. are you asking about thermal, electrical, audio. These are different mechanisms.
A material that doesn't conduct heat well is called an insulator.
thermal insulator
A insulator (a thermal insulator)
This material is a thermal insulator.
Styrofoam is the best material to use as an insulator. Styrofoam is the best insulator, since the temperature of the water in the styrofoam glass decreased the least. If you mean what "state" of matter is the best insulator then you're probably looking for gas as the answer. The state of matter that is best as a thermal insulator is gas.
oxygen.is the best insulator
No
a conductor does, while an insulator poorly conducts thermal energy!
Something that conducts thermal energy well is a thermal...conductor. If it does not conduct well it is called an insulator.
thermal insulator
A thermal insulator. The best is a vacuum, but static air is good, if it can be contained in a mat of fibres for example.
wool. are you asking about thermal, electrical, audio. These are different mechanisms.