Question

One day a magician came in a village" He said that he can cook rice without using flame. He took an empty and put some rice in it. He added water to the and after sometime, he took the rice out. The rice were cooked. The villagers were surprised but Seema, girl of that village, was not. She also performed the same magic and told that it is a science, not a magic.

(i) Give three qualities exhibited by Seema in the above passage.

(ii) How she cooked the rice without using flame ?

Answer 1

(i) Qualities shown by Seema are :

(a) Good knowledge of Science

(b) Good thinker

(c) No on the magician.

(ii) With rice, she added some lime particles. When she added water to it, an exothermic reaction occurs. The heat evolved during the reaction cooked the rice.