Phase Changes: Liquid – Solid – 4C20.00

Hand Warmers (Heat of Crystallization) – 4C20.60

Hand Warmer1_4C20.60

Hand Warmer2_4C20.60

Hand Warmer 4_4C20.60

Hand Warmer3 _4C20.60

  • Heat the hand warmers in boiling water until the liquid in vinyl pouches becomes clear.
  • Push the piezoelectric striker.
  • Observe a chemical reaction and a change of state from liquid to solid, generating heat in the process.

Location: Jacobs B122 – Shelf 284