Ball race: Five different balls heated and placed on paraffin sheet.

Ball Race: Five different balls heated and placed on paraffin sheet. A set of 5 balls (Lead, Glass, Zinc, Brass, Iron) are heated to 100 deg C in a boiling water bath, then released onto a sheet of paraffin wax. Iron melts through the paraffin first. Then brass. Zinc melts part way in. Lead and glass melt into the paraffin only a short distance. HEAT OF FUSION
UCB Index: 
C+40+0
PIRA Index: 
4F10.20
Demo Diagram: 

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