Question

Explain an activity to proove that metals are malleable?

Answer 1

we take a iron and hammer it then the shape of iron change and we will continue to hammer it till it get convert into thin sheet. hence this is the required answer

Answer 2

Aim:

To show that metals are malleable

A material is said to be malleable if it is able to be hammered or pressed permanently out of its shape. Malleability is the property of metals due to which they can be beaten into thin sheets. On the other hand, a material is brittle if it is stressed or hammered, it breaks into pieces without significant deformation.

Procedure :

(i) Take an iron piece and place it on a block of sheet on hammering iron.

(ii) Beat the iron piece with a hammer and observe the change.

(iii) Similarly, repeat the process with coal piece, aluminium wire and pencil lead. Observe and record the change in shape of these materials. Metals are malleable.

Conclusion:

Metals (iron and aluminium) are malleable but non-metals (coal and pencil lead) are brittle.

Precaution:

Beat the object/material carefully in the presence of teacher.