Electrical current flows easily through a conductor, but does not flow through an insulator. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

"Is graphene the best heat conductor ever? Researchers investigate with four-phonon scattering." ScienceDaily. www.sciencedaily.com / releases / 2023 / 11 / 231128132332.htm (accessed June 2, 2025).