Compléter Thermal Conductors Version en ligne What are the difference between thermal conductors and thermal insulators? par Aaron Stinson 1 collisions thermal not insulator Metals thermal energy electrons Nonmetals insulators kinetic conductor A material through which thermal flows easily is called a , a material through which thermal energy does flow easily is called a . are good thermal conductors because the have that move easily so they often collide with other particles and transfer energy easily . are good thermal because their electrons do not move easily , so compared with thermal conductors , few occur between electrons and atoms of insulators .