Question

Give scientific reasons for following :

(1) Metals are used to make musical instruments.

(2) Ornaments are made up of metals.

(3) Why should we not put our hand or finger in the water to judge the hotness of water?

Answer 1

(1) Metals possess the property of being sonorous, i.e. produce a ringing sound. 

Hence,

They are used to make musical instruments.

(2) Metals have the property of being malleable, ductile, lustrous. 

Hence,

Ornaments are made up of metals.

(3) We should never put our hand or finger in the water to judge how hot it is because that is not an accurate measure. 

Besides if the substance is very hot, we could get scalded.