Advanced Science Primary 4 Energy

Ravi placed identical wax cubes on rods made of different materials: Copper, Glass, and Wood. He heated the other end of the rods equally. Which wax cube will melt FIRST?

A The one on the Copper rod
B The one on the Wood rod
C All will melt at the same time
D The one on the Glass rod
Show Worked Solution

Worked Solution

Step 1: Compare the materials. Copper is a metal; Glass and Wood are non-metals. Step [2-9]: Metals are generally better conductors of heat than non-metals. Step [2-9]: Heat will travel fastest through the copper rod, melting the wax first.

Correct answer: The one on the Copper rod

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