======Heat Conduction of Different Materials======


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**Materials: **{{$demo.materials_description}}\\
**Difficulty: **{{$demo.difficulty_description}}\\
**Safety: **{{$demo.safety_description}}\\
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**Alternative titles:** Heat Transfer in Metals, Heat Conduction Melting Wax
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====Summary====                   
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====Procedure====  
  - 
  - Melt candle wax and dip one end of each rod (made of copper, iron and glass) into it.  
  - Stick a small nail or pin into the wax on each rod end.  
  - Place the rods on a tripod so that the waxed ends with nails are at the top.  
  - Position the other ends of the rods into a Bunsen burner flame.  
  - Observe which nail falls off first, second, and last.



====Links==== 
Heat Conductivity in Different Metals - Next Generation Science: 
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📄 Embibe: [[https://www.embibe.com/questions/A-simple-demonstration-of-conduction-can-be-achieved-with-a-Bunsen-burner-and-some-rods-of-different-materials-%28copper%2C-iron-and-glass-are-good-materials-to-try%29.%0A%0AMelt-some-candle-wax-and-dip-the-end-of-each-rod-into-it%3B-use-the-melted-wax-to-stick-a-small-nail-or-a-pin-to-the-end-of-each-rod.-Put-the-rods-on-a-tripod-and-place-the-ends-without-candle-wax-into-a-Bunsen-burner-flame.-The-nail-on-the-end-of-the-best-conductor-will-fall-off-first.-In-which-order-do-you-expect-the-nails-to-fall%3F%0A/EM8112797]]\\


====Variations====
  * Try additional materials such as brass or steel for comparison.  
  * Use longer rods to extend the time differences in conduction.  
  * Replace nails with small beads or paper clips for a lighter load.



====Safety Precautions====
  * Safety glasses required.  
  * Handle the Bunsen burner with care to avoid burns.  
  * Do not touch heated rods until they have cooled completely.  
  * Ensure rods are securely supported to prevent accidents.




====Questions to Consider====
  * Why does the nail on the copper rod fall off first? (Because copper is the best conductor of heat among the tested materials.)  
  * Why does the glass rod’s nail remain attached the longest? (Glass is a poor conductor of heat, so it transfers energy slowly.)  
  * How would using thicker rods affect the results? (Thicker rods would take longer to conduct heat, but the order of conductivity would remain the same.)