Question

(3) Describe the experiment showing the conduction of heat in solid substance with diagram.
std.7
English medium
sub.science
​

Answer 1

ACTIVITY TO SHOW CONDUCTION OF HEAT:

Materials required:

• Metal Scale

• Pins

• Glue

• Candle

Experiment:

Take the metal scale and attach pins on the surface of the scale using the glue at regular intervals from one end.

Now, hang the scale in such a manner that the burning candle is present at one end of the scale. (See diagram)

Observation:

The glue melts and the pins start falling one by one.

The pins present closer to the candle and fall before the others.

Inference:

As heat flows through the metallic scale from the candle in to the other it melts the glue as a result of which the pins fall.

HEAT CONDUCTION IS PROVED !

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