A magnet is the property pf attracting certain metals and producing a magnetic field known as a magnet which is a magnetized material or even a conductor carrying a electrical current.
Mass is typicclay a large body of matter with no definate shape.
A conductor is a object used to permit a flow of electrical charges to one or more directions.
Heat is the transfer from one body to another as a result of change and temperature.
A substance used for insulation.
Density is the quality of being dence.