What name is given to a material that does not allow electricity to pass through it easily?

What name is given to a material that does NOT conduct thermal energy well?

Match the correct definition to its corresponding key word. Electrical conductorThermal conductorPossible Answers A substance that allows electrical current to pass through it. A substance that allows light to pass through it.A substance that allows heat to pass through it.A substance that does not allow heat to pass through it. A substance that does not allow electricity to pass through it.I DON'T KNOWRESETSUBMIT ANSWER

What does it mean if a substance conducts electricity?

An electric current can flow through material A but not material B

Holes and electrons are present then the material is known as