CBSE Syllabus For Class 9 Science: Knowing the Syllabus is very important for the students of Class 9. Shaalaa has also provided a list of topics that every student needs to understand.
The CBSE Class 9 Science syllabus for the academic year 2022-2023 is based on the Board's guidelines. Students should read the Class 9 Science Syllabus to learn about the subject's subjects and subtopics.
Students will discover the unit names, chapters under each unit, and subtopics under each chapter in the CBSE Class 9 Science Syllabus pdf 2022-2023. They will also receive a complete practical syllabus for Class 9 Science in addition to this.
Academic year:
CBSE Class 9 Science Revised Syllabus
CBSE Class 9 Science and their Unit wise marks distribution
CBSE Class 9 Science Course Structure 2022-2023 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| 1 | Matter in Our Surroundings | |
| 2 | Is Matter Around Us Pure | |
| 3 | Atoms and Molecules | |
| 4 | Structure of the Atom | |
| 5 | The Fundamental Unit of Life | |
| 6 | Tissues | |
| 7 | Diversity in Living Organisms | |
| 8 | Motion | |
| 9 | Force and Laws of Motion | |
| 10 | Gravitation | |
| 11 | Work and Energy | |
| 12 | Sound | |
| 13 | Why Do We Fall ill | |
| 14 | Natural Resources | |
| 15 | Improvement in Food Resources | |
| Total | - |
Syllabus
1 Matter in Our Surroundings
- Matter (Substance)
- Matter
- Creation of Matter
- Physical Nature of matter
- The matter is made up of particles
- How small is this particles of matter
- Colour, odour, melting point, boiling point, density
- Chemical properties: Composition, combustibility, activity with acids and bases
- Characteristics of Particles (Molecules) of Matter
- States of Matter
- Change of State of Matter
- Concept of Melting (Fusion)
- Melting (Fusion)
- Melting point
- Latent heat
- Latent heat of fusion
- Heating curve of ice during melting
- Change in volume on melting
- Effect of pressure on the melting point
- Effect of impurities on the melting point
- Concept of Boiling (Vaporization)
- Boiling (Vaporization)
- Boiling point
- Latent heat
- Latent heat of Vaporization
- The heating curve for water
- Change in volume on boiling
- Effect of pressure on the boiling point
- Effect of impurities on the boiling point
- Concept of Freezing (Solidification)
- Freezing (Solidification)
- Freezing point
- Concept of Melting (Fusion)
2 Is Matter Around Us Pure
- Matter (Substance)
- Matter
- Creation of Matter
- Physical Nature of matter
- The matter is made up of particles
- How small is this particles of matter
- Colour, odour, melting point, boiling point, density
- Chemical properties: Composition, combustibility, activity with acids and bases
- Types of Matter
- Mixture
- Types of Mixtures
- Solutions
- Concentration of a Solution
- Concentration of a Solution
- Mass percentage
- Volume percentage
- Suspension Solution
- Colloidal Solution
- Methods of Separation
- Chromatography Method
- Chromatography
- Types of chromatography
- Adsorption chromatography
i) Column chromatography
ii) Thin layer chromatography (TLC) - Partition chromatography: paper chromatography
- Chromatography Method
- Classification of Change: Physical Changes
- Classification of Change: Chemical Changes
- Chemical Change
- Properties of Chemical Change
- Importance of Chemical Change
- Pure Substances
- Pure substance
- Characteristics of Pure substance
- Examples of Pure Substance
- Compound
- Elements
- Element
- Characteristics of Element
- Common Element
- In the universe
- In the Earth's crust
- Elements in the human Body
- Elements in air
- Birth of the Element
3 Atoms and Molecules
- History of Atom
- Laws of Chemical Combination
- Dalton’s atomic theory
- Atoms: Building Blocks of Matter
- Atoms: Building Blocks of Matter
- How big are atoms?
- How do atoms exist?
- Symbols Used to Represent Atoms of Different Elements
- Atomic Mass
- Atomic mass
- Gram atomic mass
- Average atomic mass
- Molecules
- Molecule
- Properties of molecule
- Classification of Molecules
- Difference Between Atoms and Molecules
- Ions (Radicals) and Its Types
- Radicals
- Types of Radicals
- Basic radical
- Acid radical
- Chemical Formula or Molecular Formula
- Chemical formulae of compounds : A recapitulation
- Molecular Mass
- Molecular mass
- Characteristics of molecular mass
- Gram molecular mass
- Formula Unit Mass
- Mole Concept
- Atoms and Molecules Numericals
4 Structure of the Atom
- Introduction of Atoms
- Existence of Charged Particles in Matter
- Atoms: Building Blocks of Matter
- Atoms: Building Blocks of Matter
- How big are atoms?
- How do atoms exist?
- Discovery of Charged Particles in Matter
- Cathode Ray Tube (CRT) experiment
- Protons (p)
- Protons
- Discovery of Protons
- Properties of Anode rays
- Electrons (e)
- Electrons
- Discovery of Electrons
- Properties of Cathode rays
- Charge to Mass Ratio of Electron
- Charge on the Electron
- Neutrons (n)
- Neutrons
- Discovery of Neutrons
- Properties of Neutrons
- J. J. Thomson’s Atomic Model
- Advantage and Limitations of Thomson’s Atomic Model
- Lord Rutherford’s Atomic model
- Biography of Ernest Rutherford
- Reason behind discovery of Rutherford’s atomic model
- Rutherford’s α-particle scattering experiment
- Observations of α-scattering experiment
- Conclusions of α-scattering experiment
- Rutherford's model of an atom
- Some terminologies related to the α- scattering experiment
1) Number of scattered particles
2) Distance of closest approach (Nuclear dimension)
3) Impact parameter (b)
- Limitations of Rutherford’s Atomic Model
- Neils Bohr’s Model of an Atom
- Bohr's model of an atom
- Postulates of Bohr's atomic model
- Merits of Bohr's model
- Drawbacks of Bohr's model
- Electronic Configuration of Atom
- Valency
- Different Ways to Determine Valency
- Atomic Number (Z), Mass Number (A), and Number of Neutrons (n)
- Atomic number or Nuclear charge
- Nucleons
- Mass number
- Relationship between atomic number and mass number
- Representation of element
- Number of Neutrons (n)
- Atomic Mass
- Atomic mass
- Gram atomic mass
- Average atomic mass
- Isotopes
- Isotopes
- Examples
- Properties of Isotopes
- Mass of Isotopes
- Uses of Radioactive Isotopes
- Isobars
- Isobars
- Example of Isobars
- Characteristics of Isobars
- Atoms and Molecules Numericals
5 The Fundamental Unit of Life
- Cell: the Fundamental Unit of Life
- Cell
- Totipotency
- Experiment: Microscopic examination of onion peel.
- The Invention of the Microscope and the Discovery of Cell
- Cell Theory
- Organisms Show Variety in Cell Number, Shape and Size
- Cell Numbers
- Cell Size
- Smallness of cells: A Greater Efficiency
- Cell Shapes: To suit Functional Requirement
- Prokaryotic and Eukaryotic Cell
- Means of Transport in Plants
- Concept of Osmosis
- Endosmosis
- Exosmosis
- Osmotic Pressure
- Isotonic solution
- Hypotonic solution
- Hypertonic solution
- Concept of Osmosis
- Structure of a Cell
- Structure of a Cell
- Organ and Organelle
- Nucleus - “Brain” of the Cell
- Nuclear Membrane
- Nucleoli
- Nucleoplasm
- Chromatin fibres
- Experiment: An experiment on amoeba to show that the nucleus is essential for a normal life.
- Plastids
- Plastids
- Leucoplasts
- Chromoplasts
- Chloroplast - “Food Producers”
- Non-living Substances Or Cell Inclusion
- Granules
- Vacuoles
- Plant Cell and Animal Cell
- Cell Division: an Essential Life Process
- Cell Division
- Types of Cell Division
- Amitosis - Direct Division
- Mitosis - Indirect Division
- Meiosis - Reduction Division
- Differences between Mitosis and Meiosis
6 Tissues
- Tissues - “The Teams of Workers”
- Plant and Animals Tissue
- Plant Tissues
- Meristems or Meristematic Tissues
- Classification of Meristem
- Primordial meristem or promeristem
- Apical meristems
- Intercalary meristematic
- Lateral meristem
- Function of Meristem
- Meristems or Meristematic Tissues
- Permanent Tissue
- Animal Tissues
- Epithelial Tissue
- Epithelial Tissue
- Location and Structure
- Types of Epithelial Tissue
- Simple epithelium Tissue
1. Squamous epithelial tissue
2. Cuboidal epithelial tissue
3. Columnar epithelium
4. Ciliated epithelium
5. Glandular epithelium
6. Sensory epithelial tissue
7. Germinal epithelial tissue - Compound epithelial tissue
a. Stratified epithelium
b. Transitional epithelium
- Cell junctions
Types of Cell junction
- Tight junctions (TJs)
- Hemidesmosomes (HDs)
- Gap Junctions (GJs)
- Adherens Junctions (AJs)
- Desmosomes (Ds)
- Connective Tissue
- Connective Tissue
- Types of connective tissue
- Loose connective tissue
1) Areolar tissue
2) Adipose tissue - Dense connective tissue
1) Dense regular connective tissues
2) Dense irregular connective tissues - Specialised (supporting) connective tissue
1) Cartilage
a) Hyaline cartilage
b) Elastic cartilage
c) Fibrocartilage
d) Calcified cartilage
2) Bone
3) Blood - Fluid Connective tissue (Vascular)
- Muscular Tissue
- Muscle Tissue
- Types of muscles
1) Skeletal muscles
2) Smooth or Non-striated muscles,
3) Cardiac Muscles
- Epithelial Tissue
7 Diversity in Living Organisms
- Biodiversity
- Biodiversity
- Type of biodiversity
(i) Genetic diversity
(ii) Species diversity
(iii) Ecosystem diversity - Global biodiversity and a proportionate number of species of major taxa of plants, invertebrates and vertebrates
- Biological Classification
- Biological classification
- Dichotomous key
- Features of dichotomous key
- Dichotomy of Animals
- Classification
- Classification
- Why do we classify things?
- Need for Classification
- Advantage of Classification
- Taxonomic Hierarchy of Living Organisms: Unit of Classification
- Taxonomic Hierarchy of Living Organisms
- Species
- Genus
- Family
- Order
- Class
- Phylum
- Kingdom
- Five Kingdom Classification
- Five kingdom classification
- Merits of five kingdom classification
- Demerits of five kingdom classification
- Kingdom Monera
- Kingdom Monera
- Bacteria
- Characteristic features of Kingdom Monera
- Structure of a bacterium cell
- Kingdom Protista
- Kingdom Protista
- Characteristics of Kingdom Protista
- Kingdom Fungi
- Kingdom Fungi
- Characteristics of Fungi
- Differences Between Plantae (Plants) and Animalia (Animals)
- Kingdom Plantae
- Kingdom Plantae
- Characteristics of Kingdom Plantae
- Kingdom Animalia
- Kingdom Animalia
- Characteristics of Kingdom Animalia
- Chordata: Vertebrata
- Class - Cyclostomata
- Class - Pisces
- Class - Amphibia
- Class - Reptilia
- Class - Aves
- Class - Mammalia
- Non Chordates (Invertebrata)
- Chordata: Vertebrata
- Invertebrata and Vertebrata
- Non Chordates (Invertebrata)
- Chordates
- Chordata: Prochordata
- Chordata: Vertebrata
- Comparison of chordates and non-chordates
- Taxonomy and Systematics
- Taxonomy
- Systematics
- Classification of Taxonomy
- Plant Taxonomy
- Animal Taxonomy
- Nomenclature
8 Motion
- Motion and Rest
- What is rest?
- What is motion?
- Rest and motion are relative
- Describing Motion
- Motion along a straight line
- Uniform and Non-Uniform motion
- Motion Along a Straight Line
- One dimensional motion
- Representation of one dimension notion
- Types of Motion
- Measuring the Rate of Motion - Speed with Direction
- Rate of Change of Velocity
- Distance and Displacement
- Distance
- Displacement
- Distinction between Distance and Displacement
- Graphical Representation of Motion
- Displacement - Time Graph Or Distance - Time Graph
- Distance-time graph for uniform motion
- Distance-time graph for non-uniform motion
- Velocity - Time Graphs
- Velocity-time graph for uniform velocity
- Velocity-time graph for uniform acceleration
- Displacement - Time Graph Or Distance - Time Graph
- Equations of Motion by Graphical Method
- Uniform Circular Motion (UCM)
- Circular motion
- Terms involved in a circular motion
1) Angular displacement
2) Angular Velocity
3) Angular Acceleration
- Uniform Circular Motion (UCM)
- Time Period of UCM
- Frequency of UCM
- Centripetal acceleration (Radial acceleration)
1) For non-uniform circular motion - Centripetal force
- Centrifugal force
- Motion (Numerical)
9 Force and Laws of Motion
- Force
- Force - Push or Pull
- Effect of Force
- A Force can change the State of motion
- Force can change the shape of an object
- Stops or tries to stop a moving body
- Changes or tries to change the direction of motion of a moving body
- Like parallel forces effect
- Unbalanced forces effect
- Unlike parallel forces effect
- Types of Force: Contact Force
- Types of Contact Force
- Frictional Force
- Normal reaction Force
- Spring Force
- Applied Force (Muscular force)
- Tension Force
- Air Resistance Force
- Mechanical force
- Force exerted during collision
- Types of Force: Non-Contact Force
- The general character of non-contact force
- Types of Force: Non-Contact Force
- Magnetic Force
- Electrostatic Force
- Gravitational Force
- Nuclear Force
- Balance Force
- Unbalance Force
- Balanced and Unbalanced Forces
- Newton’s Laws of Motion
- Inertia and Mass
- Conservation of Momentum
- Force and Laws of Motion (Numerical)
10 Gravitation
- Gravitation
- Gravitation
- Example of Gravitation
- Gravitational Force (Earth’ gravitational force)
- Gravitational Force Formula
- Newton’s Universal Law of Gravitation
- Newton’s universal law of gravitation
- Importance of the Universal Law of Gravitation
- Application of Newton’s law of gravitation
- Principle of superposition of gravitation
- Free Fall
- Motion of objects under the influence of gravitational force of the earth
- Escape velocity
- Acceleration Due to Gravity (Earth’s Gravitational Acceleration)
- Acceleration due to gravity
- Relationship between g and G
- Mass of the Earth (M)
- Value of g on the surface of the earth
- Variation of acceleration due to gravity (g)
- Mass and Weight of an Object
- Mass
- Weight
- Weight of an object on the moon
- Thrust and Pressure
- Thrust
- Unit of thrust
- Example of thrust
- Pressure
- Unit of Pressure
- Examples of Pressure in our daily life
- Liquid Pressure
- Liquid Pressure
- Experiment of pressure on fluid
- Buoyancy Force (Upthrust Force)
- Buoyancy and upthrust
- Condition for a body to float or sink:
a) Volume of object
b) Density of liquid - Unit of upthrust
- Cartesian diver
- Density of the Fluid
- Archimedes' Principle
- Archimedes’ Principle
- Experiment verification of Archimedes’ Principle
- Relative Density and Its Unit
- Relative density
- Unit of relative density
11 Work and Energy
- Introduction of Work
- Work
- Application of force
- Two conditions need to be satisfied for work to be done
- Factors affecting the amount of work done
- Concept of Work
- Definition of work
- Units of work
- Relationship between joule and erg
- Positive, Negative, and Zero Work
- Concept of Energy
- Energy is the capacity to do work
- Relationship between work and energy
- Units of energy
- Mechanical Energy and Its Types
- Mechanical Energy
- Types of Mechanical Energy
(1) Potential Energy
(2) Kinetic Energy
- Kinetic Energy
- Kinetic Energy
- Factors affecting the kinetic energy of a moving body
- Expression for the Kinetic Energy
- Relationship between kinetic energy and momentum
- Potential Energy
- Potential Energy
- Expression for the potential Energy
- Some examples of potential energy Gravitational potential energy
- Potential Energy of an Object at a Height
- Gravitational Potential Energy
- Gravitational potential energy
- Expression for the Gravitational potential energy
- Gravitational potential energy at a height (U = mgh)
- Transformation of Energy
- Law of Conservation of Energy
- Rate of Doing Work
- Work and Energy (Numericals)
12 Sound
- Sound
- Sound
- Types of Sound
- Longitudinal wave
- Transverse wave
- Categories of sound waves based on their frequencies
- Audible waves
- Infrasonic waves
- Ultrasonic waves
- Production of Sound
- Experiment: A vibrating string produces sound.
- Experiment: A vibrating tuning fork produces sound.
- Propagation of Sound
- Sound Need a Medium to Travel
- Experiment: Bell-Jar experiment
- Sound Waves Are Longitudinal Waves
- Characteristics of a Sound Wave
- Frequency
- Amplitude (A)
- Time period (T)
- Wavelength (λ)
- Wave velocity
- Pitch
- Speed of Sound (Velocity of Sound)
- Speed of Sound
- Particle velocity
- Wave velocity
- Reflection of Sound
- Reflection of Sound
- Reflection of sound in a different medium
- Reflection at the boundary of a denser medium
- Reflection at the boundary of a rarer medium
- Reflection of sound in the plane and curved surfaces
- Echoes
- Echoes
- Conditions necessary for hearing echo
- Measuring velocity of sound by echo method
- Applications of echo
- Reverberation
- Uses of Multiple Reflection of Sound
- Range of Hearing in Humans
- Ultrasonic Sound Or Ultrasound
- Ultrasonic Sound or Ultrasound
- Applications of ultrasonic waves
- Difference between ultrasonic and supersonic
- SONAR
- Human Ear
- Structure of Human Ear
- Mechanism of Human ear
- Sound (Numerical)
13 Why Do We Fall ill
- Health
- Health
- The significance of 'Health'
- Personal and Community Issues Both Matter for Health
- Distinctions between "Healthy" and 'Disease-Free'
- Disease
- Diseases
- Identification of disease
- Categories of Disease
- Categories of Disease
- Extent of occurrence
- Endemic diseases
- Epidemic diseases
- Pandemic diseases
- Sporadic diseases - Communicability: Communicable or Infectious diseases & Non- Communicable or Non-Infectious diseases
- Kinds of pathogens
- Kinds of transmitting agents
- Congenital diseases and acquired diseases
- Other types of diseases
- Infectious diseases
- Hereditary diseases
- Physiological diseases
- Deficiency diseases
- Acute and Chronic Diseases
- Causes of Disease
- Communicable Or Infectious Diseases
- Communicable or Infectious diseases
- Causes of Communicable or Infectious diseases
- Communicable examples
- Incubation period
- Non-communicable or Non-infectious Diseases
- Non-communicable or Non-infectious diseases
- Causes of Non-infectious diseases
- Non-communicable examples
- Infectious Agents
- Manifestation of Diseases
- Modes of Transmission of Diseases
- Spread of disease through air
- Spread of disease through water
- Spread of disease through food
- The spread of disease by insects
- Spread of disease by direct contact
- Organ-specific and Tissue-specific Manifestations
- Principles of Prevention of Diseases
- Principles of Treatment of Diseases
14 Natural Resources
- Natural Resource
- Biosphere: The Domain of Life
- Air is a Mixture
- Atmosphere and Its Layers
- Wind: The Movement of Air
- Rain
- Air Pollution and Its Causes
- Air Pollution
- Causes of Air pollution
- Sources of Air Pollution
- Water, Our Lifeline
- Introduction
- Water: A Compound
- Occurrence of water
- Where Do We Get Water From?
- Availability of Water
- Importance of Water
- Water Pollution and Its Causes
- Water Pollution
- Causes of Water Pollution
- Sources of Water Pollution
- Mineral Riches in the Soil
- Biogeochemical Cycle
- Water Cycle
- Water Cycle
- Evaporation
- Sublimation
- Transpiration
- Condensation
- Precipitation
- Runoff
- Infiltration
- Percolation
- Importance of water cycle
- Human impacts on the water cycle
- Nitrogen Cycle
- Nitrogen fixation
- Nitrogen assimilation
- Ammonification
- Nitrification
- Denitrification
- Human impacts on the nitrogen cycle
- Water Cycle
- Ozone
- Ozone
- Function of ozone in the atmosphere
- Harmful effects of ozone
- Ozone Layer Depletion
- Depletion of Ozone Layer
- Chemicals responsible for the destruction of the ozone layer
15 Improvement in Food Resources
- Improvements in Food Resources
- Improvement in Crop Yields
- Methods to Replenish Nutrients in Your Soil
- Manuring (Biomanuring)
- Fertilizers
- Irrigation
- Types of Irrigation
- Animal Husbandry (Livestock)
- Animal Husbandry
- Role of Animal Husbandry in Human Welfare
- Advantages of Animal Husbandry
- Management of farms and farm animals
- Dairy Farming
- Dairy farm management
- Composition of Cattle Feed
- Feed Management
- Improvement of Livestock Development in India
- Diseases
- Uses of Dairy Farming
- Poultry Farming
- Poultry Farming
- Poultry Feeding
- Poultry Disease
- Poultry product
- Uses of Poultry Farming
- Poultry management
- Pisciculture (Fish Farming)
- Pisciculture
- Types of Fish Culture
- Types of Ponds for Fish Culture
- Cultivable Food Fishes
- Nutritional Value of Fishes
- Apiculture (Bee Farming)
- Apiculture
- Types of Honey Bee
- Useful product of Honey Bees
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