Explain how burning of paper is different from tearing it?
Important Questions on Changes Around Us
On a cold day, Harish tried to open the metallic cup of an ink bottle. His mother told him to pour hot water on it. He poured hot water on the cap for a minute. Now the metallic cup opened easily. He was surprised and asked this observation of his elder brother Ritesh. Being a student of science Ritesh explained such things properly.
Answer the following based on the above information.
What are the values displayed by Ritesh?
On a cold day, Harish tried to open the metallic cup of an ink bottle. His mother told him to pour hot water on it. He poured hot water on the cap for a minute. Now the metallic cup opened easily. He surprised and asked this observation to his elder brother Ritesh. Being a student of science Ritesh explained such things properly.
Answer the following based on the above information.
Why it is easy to open metallic cap when warmed with water?
