Design an activity to show that metals are good conductors of heat and have high melting points.
Design an activity to show that metals are good conductors of heat and have high melting points.
Solution
Activity:
Take an aluminum or copper wire and clamp it on a stand as shown in the diagram.
Fix a pin to the free end of the wire using wax.
Heat the wire with spirit lamp or burner near the place where it is clamped.
We will observe that the pin falls when the wax melts but wire does not melt.
It indicates that metals are good conductors of heat and have high melting points.
[Diagram: stand, clamp, metal wire, free end of wire with pin and wax, heated by burner]
(diagram is not mandatory)
(any other activity)