Page 3 - Lesson notes-Transfer of heat and Conduction

Activity:
Method of heat transfer by Conduction
Materials Needed:
1. A metal rod (such as iron or copper)
2. Small pins or paper clips
3. Wax or Vaseline
4. A candle or Bunsen burner
5. A stand or supports to hold the rod horizontally.
Procedure:
• Apply small amounts of wax at equal intervals along the length of the metal rod.
• Attach a pin to each wax spot, ensuring they stick firmly.
• Secure the rod horizontally on the stand.
• Heat one end of the rod using the candle or Bunsen burner.
• Observe as the pins begin to fall off sequentially as the wax melts due to the heat
conducted through the rod.

Concept Reinforced
This demonstration visually showcases heat conduction—the process where heat energy is
transferred through a material from the hotter end to the cooler end. As the metal rod is
heated, thermal energy travels along its length, melting the wax and causing the pins to drop.
This illustrates how particles in a solid transfer energy through vibrations and collisions.