Matter Around us Pure | HOTS

A tightnened glass stopper can be taken out easily by pouring hot water around the nect of the bottle. Why it is so?

Try segregating the things around you as pure substances or mixtures.

Colloids around us

Matter|Mixtures|Pure Substances|Significant Figures|Scientific Notation|OMR

In India the term hot money is used to refer to

Activated charcoal is used to remove colouring matter from pure substance, it works by