• Question: what is used in pencils

    Asked by CASANDRA to Ashley, Bernard, Carsten, MariaMagdalena, Monique on 16 Nov 2015.
    • Photo: Bernard Ennis

      Bernard Ennis answered on 16 Nov 2015:

      The black bit in a pencil is made up of graphite (carbon). Due to the way the atoms in the graphite crystal are arranged makes it is easy to remove a layer of the atoms by applying pressure thereby leaving a permanent mark.

Comments