Chemistry is the study of matter, including its composition, properties, and structure; how it changes; and how it interacts with energy.
This is a pretty simple definition that sums up what is actually a complex and fascinating subject. If you have ever asked why or how something is in the natural world,
odds are good that your question and the answer were related to chemistry. Upper primary stage demands that a number of opportunities should be provided to the students
to engage them with the processes of Science like observing, recording observations, drawing, tabulation, plotting graphs, etc.,
whereas the secondary stage also expects abstraction and quantitative reasoning to occupy a more central place in the teaching and learning of Chemistry .
The CBSE Class 9 can be called as the foundation for higher
classes and thus it is very important for students to learn the
topics thoroughly. For example, if a student takes up science
after their board exams, topics like mechanics and waves, etc.
would also be included in higher classes. So, learning the
topics properly from an early stage is very crucial. The
curriculum is designed in a way that the students learn and
develop their sense of individuality which naturally shapes
their future. The guidelines for CBSE Class 9 are issued by the
board and the NCERT. So, the schools affiliated to the CBSE
board follows the NCERT syllabus. It is important that subjects
like science and maths are learnt properly by understanding each
concept and topic as these topics would be included in higher
standards. For proper preparation, knowing the syllabus is very
important along with solving various sample questions.
Here, the detailed CBSE syllabus for class 9 chemistry is
provided for the students to acquaint them with the topics that
CBSE has included in the syllabus
Matter - Its Nature and Behavior
Unit I: Matter-Nature and Behaviour
Matter in sour surrounding: Definition of matter;
solid, liquid and gas; characteristics - shape, volume, density;
change of state-melting (absorption of heat), freezing, evaporation
(cooling by evaporation), condensation, sublimation.
Is matter around us pure: Elements, compounds and
mixtures. Heterogeneous and homogenous mixtures, colloids and
suspensions. Particle nature, basic units: Atoms and molecules, Law
of constant proportions.
Atomic and molecular masses, Mole concept:
Relationship of mole to mass of the particles and numbers.
Structure of atoms: Electrons, protons and neutrons,
valency, chemical formula of common compounds. Isotopes and Isobars.
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