class 9 science

Class 9 science is an initial step towards exploring the world of science. if you tackle the class 9 science syllabus precisely then the further steps will seem like a piece of cake that you will enjoy studying. The following article will enlighten you about class 9 science and its syllabus.

CBSE Class 9 Maths Revised Syllabus for 2020-21


Class 9 science syllabus includes: 

Unit I: Matter – Its Nature and Behaviour

a.  Nature of Matter –

i. Colloids and suspensions

ii. Homogenous and heterogeneous mixtures

iii. Elements, compounds, and mixtures

b. Particle Nature and Basic Units –

i. Law of Constant Proportions

ii. Molecules and atoms

iii. Mole concept

iv. Molecular and atomic masse

c.  Structure of Atoms –

i. Valency

ii. Protons, electrons and neutrons

iii. Isotopes and Isobars

iv. Chemical formula and common compounds

Unit II: Organisation in the Living World

a.      Tissues, Organs, Organ System, Organism –

i. Structure and functions of plant and animal tissues

ii. Four types of tissues in plants

iii. Meristematic and Permanent tissues in plants

b. Biological Diversity –

i. Basis of classification

ii. Diversity of plants and animals

iii. Major group of animals (Non-chordates up to phyla and chordates up to classes)

iv. Major groups of plants (Bacteria, Thallophyta, Bryophyta, Pteridophyta, Gymnosperms, and Angiosperms)

c.  Health and Diseases –

i. Pulse Polio programs

ii. Diseases caused by microbes and their prevention

iii. Infectious and Non-Infectious diseases

iv. Treatment and prevention

Unit III: Motion, Force, and Work

a.  Motion –

i. Acceleration, distance-time, and velocity-time graphs for uniform motion and uniformly accelerated motion

ii. Uniform and non-uniform motion along a straight line

iii. Elementary idea of uniform circular motion

iv. Derivation of equations of motion by graphical method

v. Distance, displacement, and velocity

b. Force and Newton’s Laws –

i. Force and Motion

ii. Action and Reaction forces

iii. Inertia of a body

iv. Newton’s Laws of Motion

v. Inertia and mass

vi. Momentum

vii. Elementary idea of conservation of Momentum

viii.    Force and Acceleration  

c.  Gravitation–

i. Acceleration due to Gravity

ii. Universal Law of Gravitation

iii. Gravity

iv. Freefall

v. Mass and Weight

d. Floatation–

i. Thrust and Pressure, Archimedes’ Principle

ii. Elementary idea of Relative Density

iii. Buoyancy

iv. Work, Energy and Power 

v. Work done by a force, energy, power

vi. Law of Conservation of Energy

vii. Kinetic and Potential energy

e.  Sound –

i. Nature of sound and its propagation in various media, speed of sound, range of hearing in humans

ii. Reflection of sound

iii. Ultrasound

iv. Echo and Sonar 

Unit IV: Our Environment

a.  Physical Resources –

i. Air, water, and soil

ii. Pollution of air, water, and soil. 

b. Bio-Geo Chemical Cycles in Nature –

i. Water 

ii. Oxygen 

iii. Carbon 

iv. Nitrogen

Unit V: Food and Food Production

i. Plant and animal breeding

ii. Organic farming

iii. Use of fertilizers and manures

iv. Protection from pests and diseases

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