Ravi placed identical cubes of wax on the ends of four rods made of different materials: copper, glass, plastic, and iron. He heated the other ends of the rods. On which rod will the wax melt the FASTEST?
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Worked Solution
Step 1: Compare the thermal conductivity of materials. Step 2: Copper is the best conductor of heat among the list. Step 3: Heat travels fastest through copper to melt the wax.
Correct answer: Copper
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