9th chemistry

This  course is for class 9th in  which is a topic of atoms and molecules chapter of science (chemistry). Here in this chapter students learn the basics of atomic structure and subatomic particles and different models based on atoms such as jj Thomson model, Rutherford and bohr model such as plum pudding model, Rutherford nucleus experiment etc. , in this course the chapters matter and its classification and change in states of matter , separation methods of mixtures, valency of elements and molecular concept, molar mass concept are included to explain each topic clearly in a simple understanding. Topics are explained on the basis of academic as well as competitive foundational concepts to cover deep insights of each topic in a convenient manner without any problem. Apart from the concept each topic will be explained with daily life examples for deep understanding of the concepts. With each topic some problema will also be discussed to crystal and clear each topic.