Question

177
Srujan mixed some amount of sand. sugar.
pondered tablets and salt in a plate and poured
the mixture into a bowl containing water. He
stirred it with the help of a spoon and kept it
aside. After five minutes he was shocked and
confused to see that all the objects had
disappeared except sand. Help him to answer
the following questions.
1. Why do they disappear only when poured into water?​

Answer 1

Because sugar, pondered tablets,

and salt all are soluble substances

and dissolves in water. so, They had

disappeared.

And sand is insoluble so, it is remain.

Hope it will help you..,