Standard Science Primary 4 Energy

Four rods of the same thickness but different materials were placed in a tank of hot water. A drop of wax was placed on the end of each rod. On which rod will the wax melt the FASTEST?

A Plastic rod
B Copper rod
C Glass rod
D Wooden rod
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Worked Solution

Step 1: Heat travels through materials via conduction. Step 2: Metals are good conductors of heat. Step 3: Copper is a metal and will transfer heat to the wax faster than the other non-metal materials.

Correct answer: Copper rod

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