PURPOSE: To show the Curie point of nickel.

DESCRIPTION: A Canadian nickel has the ferromagnetic element nickel as a major part of its composition, and is strongly attracted to a magnet, as shown in the photograph. When heated above its Curie temperature by the gas torch, it loses its ferromagnetism and falls away from the magnet to the pedestal. After a few seconds it will again be pulled up to the magnet.

SUGGESTIONS:

REFERENCES: (PIRA 5G50.15)

EQUIPMENT: Canadian nickel on wire with stand, large permanent magnet.

SETUP TIME: None.