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Structure of Atom | Revision Notes | Science | Class 9

Atoms are the basic building blocks of matter. Different kinds of matter exist because there are different kinds of atoms present in them. Charged Particles in Matter Whenever we rub two objects together, they become electrically charged. This is because atoms contain charged particles in them. Therefore, atoms can be Read more…

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Evaporation | Class IX

The process of a liquid changing into vapour (or gas) even below its boiling point is called Evaporation. Whatever be the temperature at which evaporation takes place, the latent heat of vaporization must be supplied whenever a liquid changes into vapour (or gas). The process of evaporation can be explained Read more…