CBSE (Class 8-12) Self Study
Class-wise CBSE chapter notes for Science/Physics/Chemistry/Biology, Mathematics, English, Social Science and Computer Science.
Class 8
Science
- Crop Production and Management
Learn agricultural practices in sequence with one example each
Notes ready · test coming soon - Microorganisms: Friend and Foe
Useful microbes in curd, bread and antibiotics
Notes ready · test coming soon - Coal and Petroleum
Exhaustible vs inexhaustible resources
Notes ready · test coming soon - Combustion and Flame
Conditions for combustion and ignition temperature
Notes ready · test coming soon - Conservation of Plants and Animals
Deforestation causes and consequences
Notes ready · test coming soon - Cell Structure and Functions
Plant vs animal cell differences with diagram labels
Notes ready · test coming soon - Reproduction in Animals
Sexual vs asexual reproduction with examples
Notes ready · test coming soon - Force, Pressure and Friction
Types of forces and pressure = force/area
Notes ready · test coming soon - Sound
Production and propagation; frequency, amplitude, pitch
Notes ready · test coming soon - Chemical Effects of Electric Current
Conducting liquids and electrolysis
Notes ready · test coming soon - Light
Laws of reflection, regular vs diffused reflection
Notes ready · test coming soon - Some Natural Phenomena and Stars
Lightning, earthquakes and safety measures
Notes ready · test coming soon
Mathematics
- Rational Numbers
Properties: closure, commutative, associative, distributive
Notes ready · test coming soon - Linear Equations in One Variable
Transpose carefully and verify the root
Notes ready · test coming soon - Understanding Quadrilaterals
Angle sum property and special quadrilateral properties
Notes ready · test coming soon - Data Handling
Grouped data, histograms and pie charts
Notes ready · test coming soon - Squares and Square Roots
Patterns of square numbers and Pythagorean triplets
Notes ready · test coming soon - Cubes and Cube Roots
Perfect cubes and prime factorisation method
Notes ready · test coming soon - Comparing Quantities
Percentage, profit-loss, discount and tax
Notes ready · test coming soon - Algebraic Expressions and Identities
Standard identities and their applications
Notes ready · test coming soon - Mensuration
Area of trapezium, polygon; surface area of cuboid, cube, cylinder
Notes ready · test coming soon - Exponents and Powers
Laws of exponents with negative powers
Notes ready · test coming soon - Direct and Inverse Proportions
Identify the type before setting the equation
Notes ready · test coming soon - Factorisation
Common factors, grouping and identities
Notes ready · test coming soon - Introduction to Graphs
Reading and plotting linear graphs
Notes ready · test coming soon
English
- Reading Comprehension
Skim first, then locate the answer's keyword
Notes ready · test coming soon - Writing Skills: Notice, Message, Diary
Follow the prescribed format and word limit
Notes ready · test coming soon - Grammar: Tenses and Modals
Match tense with the time marker in the sentence
Notes ready · test coming soon - Grammar: Voice, Narration and Determiners
Change verb form correctly in passive voice
Notes ready · test coming soon - Literature: Prose
Note theme, characters and message for each chapter
Notes ready · test coming soon - Literature: Poetry
Identify rhyme scheme and figures of speech
Notes ready · test coming soon
Social Science
- History: From Trade to Territory
Battles of Plassey and Buxar and the Doctrine of Lapse
Notes ready · test coming soon - History: Colonialism, Rural Life and Revolt of 1857
Permanent, Ryotwari and Mahalwari settlements
Notes ready · test coming soon - Geography: Resources and Their Types
Renewable vs non-renewable; conservation methods
Notes ready · test coming soon - Geography: Land, Soil, Water, Vegetation and Wildlife
Soil formation factors and erosion control
Notes ready · test coming soon - Geography: Agriculture and Industries
Types of farming and major crops
Notes ready · test coming soon - Civics: The Indian Constitution and Secularism
Key features and Fundamental Rights
Notes ready · test coming soon - Civics: Parliament, Judiciary and Social Justice
Law-making process and judicial structure
Notes ready · test coming soon
Computer Science
- Computer Fundamentals
Hardware vs software; input, output, storage devices
Notes ready · test coming soon - Operating System and File Management
Functions of an OS and common file operations
Notes ready · test coming soon - Spreadsheets
Cell referencing, basic formulas and charts
Notes ready · test coming soon - Introduction to Programming (Python/Scratch)
Variables, data types and input/output
Notes ready · test coming soon - Internet and Cyber Safety
Search techniques, email etiquette
Notes ready · test coming soon - Web Designing Basics (HTML)
Structure of an HTML page and common tags
Notes ready · test coming soon
Class 9
Science
- Matter in Our Surroundings
States of matter, evaporation and latent heat
Notes ready · test coming soon - Is Matter Around Us Pure
Mixtures, solutions, colloids and separation techniques
Notes ready · test coming soon - Atoms and Molecules
Laws of chemical combination and mole concept
Notes ready · test coming soon - Structure of the Atom
Thomson, Rutherford and Bohr models
Notes ready · test coming soon - The Fundamental Unit of Life
Cell organelles and their functions
Notes ready · test coming soon - Tissues
Meristematic vs permanent plant tissues
Notes ready · test coming soon - Motion
Distance-time and velocity-time graphs
Notes ready · test coming soon - Force and Laws of Motion
Newton's laws and inertia types
Notes ready · test coming soon - Gravitation, Work and Energy
g, free fall, thrust, pressure and buoyancy
Notes ready · test coming soon - Sound
Characteristics of sound and echo/SONAR calculations
Notes ready · test coming soon - Improvement in Food Resources
Crop variety improvement and management
Notes ready · test coming soon - Natural Resources
Air, water and soil pollution
Notes ready · test coming soon
Mathematics
- Number Systems
Rational vs irrational, decimal expansions
Notes ready · test coming soon - Polynomials
Degree, zeroes, remainder and factor theorem
Notes ready · test coming soon - Coordinate Geometry
Cartesian plane, quadrant signs and plotting
Notes ready · test coming soon - Linear Equations in Two Variables
Solutions form a straight line
Notes ready · test coming soon - Introduction to Euclid's Geometry
Axioms vs postulates
Notes ready · test coming soon - Lines, Angles and Triangles
Angle-pair rules and parallel-line theorems
Notes ready · test coming soon - Quadrilaterals
Properties of parallelograms and mid-point theorem
Notes ready · test coming soon - Circles
Equal chords, perpendicular from centre, cyclic quadrilaterals
Notes ready · test coming soon - Heron's Formula
Area of scalene triangles and quadrilaterals
Notes ready · test coming soon - Surface Areas and Volumes
Formulas for cuboid, cylinder, cone, sphere, hemisphere
Notes ready · test coming soon - Statistics
Bar graphs, histograms and frequency polygons
Notes ready · test coming soon
English
- Reading Section
Factual and discursive passages with MCQ practice
Notes ready · test coming soon - Writing: Descriptive Paragraph and Diary Entry
Follow structure: opening, body, closing
Notes ready · test coming soon - Writing: Story and Letter Writing
Formal letter format and tone
Notes ready · test coming soon - Grammar: Tenses, Modals and Subject-Verb Concord
Gap-filling and editing exercises
Notes ready · test coming soon - Grammar: Reported Speech and Determiners
Backshift rules and pronoun changes
Notes ready · test coming soon - Literature: Beehive and Moments
Theme, character sketch and value points per chapter
Notes ready · test coming soon
Social Science
- History: The French Revolution
Causes, phases and role of Rousseau/Montesquieu
Notes ready · test coming soon - History: Socialism, Russian Revolution and Nazism
February and October revolutions and their outcomes
Notes ready · test coming soon - History: Forest Society, Pastoralists and Colonialism
Colonial forest laws and their effects
Notes ready · test coming soon - Geography: India — Size, Location and Physical Features
Latitudinal and longitudinal extent, standard meridian
Notes ready · test coming soon - Geography: Drainage, Climate, Vegetation and Population
River systems and monsoon mechanism
Notes ready · test coming soon - Civics: Democracy and the Constitution
Features of democracy and constitutional design
Notes ready · test coming soon - Civics: Electoral Politics and Working of Institutions
Election process and Election Commission
Notes ready · test coming soon - Economics: The Story of Village Palampur and Food Security
Factors of production and farming methods
Notes ready · test coming soon
Computer Science
- Computer Systems and Organisation
CPU, memory hierarchy and storage units
Notes ready · test coming soon - Number Systems and Data Representation
Binary, octal and hexadecimal conversion
Notes ready · test coming soon - Introduction to Python
Variables, data types, operators, input/output
Notes ready · test coming soon - Control Flow and Loops
if-elif-else decisions
Notes ready · test coming soon - Office Tools and Documentation
Word processing, spreadsheet formulas, presentations
Notes ready · test coming soon - Cyber Safety and Digital Citizenship
Safe browsing, identity protection, netiquette
Notes ready · test coming soon
Class 10
Science
- Chemical Reactions and Equations
Balance equations and identify reaction types
Notes + 30-question test - Acids, Bases and Salts
pH scale, indicators and neutralisation
Notes ready · test coming soon - Metals and Non-metals
Reactivity series and extraction methods
Notes ready · test coming soon - Carbon and Its Compounds
Catenation, homologous series and IUPAC naming
Notes ready · test coming soon - Life Processes
Nutrition, respiration, transport and excretion
Notes ready · test coming soon - Control and Coordination
Reflex arc, human brain parts, hormones
Notes ready · test coming soon - How do Organisms Reproduce
Asexual modes and human reproductive system
Notes ready · test coming soon - Heredity and Evolution
Mendel's laws, monohybrid/dihybrid crosses
Notes ready · test coming soon - Light — Reflection and Refraction
Mirror and lens formula with sign convention
Notes ready · test coming soon - Human Eye and Colourful World
Defects of vision and their correction
Notes ready · test coming soon - Electricity
Ohm's law, series/parallel resistance and heating effect
Notes ready · test coming soon - Magnetic Effects of Electric Current
Right-hand thumb and Fleming's rules
Notes ready · test coming soon - Our Environment and Natural Resource Management
Food chains, trophic levels, ozone depletion
Notes ready · test coming soon
Mathematics
- Real Numbers
Euclid's division lemma and fundamental theorem of arithmetic
Notes ready · test coming soon - Polynomials
Relationship between zeroes and coefficients
Notes ready · test coming soon - Pair of Linear Equations in Two Variables
Substitution, elimination and cross-multiplication
Notes ready · test coming soon - Quadratic Equations
Factorisation and quadratic formula
Notes ready · test coming soon - Arithmetic Progressions
nth term and sum formulas
Notes ready · test coming soon - Triangles
Basic proportionality theorem and similarity criteria
Notes ready · test coming soon - Coordinate Geometry
Distance, section and midpoint formulas
Notes ready · test coming soon - Introduction to Trigonometry
Ratios of standard angles and identities
Notes ready · test coming soon - Some Applications of Trigonometry
Heights and distances with angle of elevation/depression
Notes ready · test coming soon - Circles
Tangent properties and lengths of tangents from an external point
Notes ready · test coming soon - Areas Related to Circles
Sector and segment area formulas
Notes ready · test coming soon - Surface Areas and Volumes
Combination of solids and conversion of shapes
Notes ready · test coming soon - Statistics and Probability
Mean by three methods, median and mode of grouped data
Notes ready · test coming soon
English
- Reading Comprehension
Discursive and case-based passages
Notes ready · test coming soon - Writing: Formal Letter and Analytical Paragraph
Letter format marks are easy marks — memorise it
Notes ready · test coming soon - Grammar: Tenses, Modals, Subject-Verb Concord
Gap-filling and reported speech editing
Notes ready · test coming soon - Grammar: Reported Speech
Command, request and question transformations
Notes ready · test coming soon - Literature: First Flight (Prose)
Theme and character analysis chapter by chapter
Notes ready · test coming soon - Literature: First Flight (Poetry)
Central idea, poetic devices and tone
Notes ready · test coming soon - Literature: Footprints Without Feet
Plot summary and moral of each story
Notes ready · test coming soon
Social Science
- History: Nationalism in Europe and India
Key events, treaties and leaders with dates
Notes ready · test coming soon - History: The Making of a Global World and Industrialisation
Silk routes, indentured labour, Bretton Woods
Notes ready · test coming soon - History: Print Culture and the Modern World
Spread of print and its social impact
Notes ready · test coming soon - Geography: Resources and Development
Resource classification and land-use pattern
Notes ready · test coming soon - Geography: Water, Agriculture and Minerals
Multipurpose projects and rainwater harvesting
Notes ready · test coming soon - Geography: Manufacturing Industries and Lifelines
Industry classification and pollution control
Notes ready · test coming soon - Civics: Power Sharing and Federalism
Forms of power sharing and decentralisation in India
Notes ready · test coming soon - Civics: Gender, Religion, Caste, Political Parties and Democracy
Social divisions and political outcomes
Notes ready · test coming soon - Economics: Development, Sectors and Money & Credit
HDI indicators and sectoral classification
Notes ready · test coming soon
Computer Science
- Digital Documentation and Spreadsheets
Styles, templates, mail merge
Notes ready · test coming soon - Database Management Concepts
Tables, primary key, relationships
Notes ready · test coming soon - Python Programming Basics
Data types, operators, conditionals
Notes ready · test coming soon - Functions and Modules
Defining functions, arguments and return values
Notes ready · test coming soon - Web Applications and HTML
HTML structure, tables, forms and links
Notes ready · test coming soon - Cyber Ethics and Safety
IT Act awareness, netiquette and privacy
Notes ready · test coming soon
Class 11
Physics
- Physical World and Measurement
Dimensional analysis and error estimation
Notes ready · test coming soon - Kinematics
Motion in a straight line and in a plane
Notes ready · test coming soon - Laws of Motion
FBD, friction and circular motion dynamics
Notes ready · test coming soon - Work, Energy and Power
Work-energy theorem and conservative forces
Notes ready · test coming soon - System of Particles and Rotational Motion
Centre of mass, torque and angular momentum
Notes ready · test coming soon - Gravitation
Kepler's laws and gravitational potential energy
Notes ready · test coming soon - Mechanical Properties of Solids and Fluids
Stress-strain and elastic moduli
Notes ready · test coming soon - Thermal Properties of Matter
Expansion, calorimetry and heat transfer
Notes ready · test coming soon - Thermodynamics
First law applied to each process
Notes ready · test coming soon - Kinetic Theory of Gases
Pressure derivation and degrees of freedom
Notes ready · test coming soon - Oscillations
SHM equations, energy and phase
Notes ready · test coming soon - Waves
Wave equation, superposition and standing waves
Notes ready · test coming soon
Chemistry
- Some Basic Concepts of Chemistry
Mole concept, limiting reagent, empirical/molecular formula
Notes ready · test coming soon - Structure of Atom
Quantum numbers and orbital filling rules
Notes ready · test coming soon - Classification of Elements and Periodicity
Periodic trends and their exceptions
Notes ready · test coming soon - Chemical Bonding and Molecular Structure
VSEPR shapes, hybridisation, MOT
Notes ready · test coming soon - Thermodynamics
State functions, enthalpy and Hess's law
Notes ready · test coming soon - Equilibrium
Kc, Kp, Le Chatelier's principle
Notes ready · test coming soon - Redox Reactions
Oxidation number rules and balancing
Notes ready · test coming soon - The p-Block Elements (Group 13 & 14)
Anomalous behaviour of B and C
Notes ready · test coming soon - Organic Chemistry: Basic Principles and Techniques
IUPAC nomenclature and isomerism
Notes ready · test coming soon - Hydrocarbons
Alkane, alkene, alkyne preparations and reactions
Notes ready · test coming soon - Structure of Atom to Practical: Salt Analysis Basics
Cation and anion detection tests
Notes ready · test coming soon
Biology
- The Living World and Biological Classification
Taxonomic categories and nomenclature
Notes ready · test coming soon - Plant Kingdom and Animal Kingdom
Alternation of generations across plant groups
Notes ready · test coming soon - Morphology and Anatomy of Flowering Plants
Root, stem, leaf modifications and floral formula
Notes ready · test coming soon - Structural Organisation in Animals
Animal tissues and organ systems
Notes ready · test coming soon - Cell: The Unit of Life and Biomolecules
Organelles and their functions
Notes ready · test coming soon - Cell Cycle and Cell Division
Mitosis and meiosis stage-by-stage
Notes + 30-question test - Transport in Plants and Mineral Nutrition
Water potential, transpiration pull, phloem loading
Notes ready · test coming soon - Photosynthesis and Respiration in Plants
C3, C4, CAM pathways and photorespiration
Notes ready · test coming soon - Plant Growth and Development
Phases of growth and plant hormones
Notes ready · test coming soon - Human Physiology: Digestion and Breathing
Enzymes, absorption and digestive disorders
Notes ready · test coming soon - Human Physiology: Circulation and Excretion
Cardiac cycle, ECG and blood groups
Notes ready · test coming soon - Human Physiology: Locomotion, Neural and Chemical Coordination
Muscle contraction mechanism
Notes ready · test coming soon
Mathematics
- Sets, Relations and Functions
Venn diagrams and set operations
Notes ready · test coming soon - Trigonometric Functions
Identities, transformation and general solutions
Notes ready · test coming soon - Complex Numbers and Quadratic Equations
Modulus, argument and polar form
Notes ready · test coming soon - Linear Inequalities and Linear Programming
Graphical solution regions
Notes ready · test coming soon - Permutations and Combinations
Fundamental counting principle
Notes ready · test coming soon - Binomial Theorem
General and middle term
Notes ready · test coming soon - Sequences and Series
AP, GP, special series sums
Notes + 30-question test - Straight Lines and Conic Sections
Slope forms, distance and family of lines
Notes ready · test coming soon - Introduction to Three Dimensional Geometry
Coordinates, distance and section formula
Notes ready · test coming soon - Limits and Derivatives
Standard limits and algebra of limits
Notes ready · test coming soon - Statistics and Probability
Mean deviation, variance, standard deviation
Notes ready · test coming soon
English
- Reading Comprehension and Note Making
Skimming, scanning and summarising
Notes ready · test coming soon - Writing: Notice, Poster and Invitation
Format-first approach for full marks
Notes ready · test coming soon - Writing: Letters and Article Writing
Business/official letter formats
Notes ready · test coming soon - Grammar: Tenses, Clauses and Error Correction
Editing and gap-filling techniques
Notes ready · test coming soon - Literature: Hornbill (Prose and Poetry)
Theme, character and poetic devices per chapter
Notes ready · test coming soon - Literature: Snapshots
Story summaries and value points
Notes ready · test coming soon
Computer Science
- Computer Systems and Organisation
CPU, memory, I/O and Boolean logic
Notes ready · test coming soon - Python Fundamentals
Data types, operators, expressions and I/O
Notes ready · test coming soon - Conditional and Iterative Statements
if-elif-else and nested conditions
Notes ready · test coming soon - Strings, Lists, Tuples and Dictionaries
Indexing, slicing and built-in methods
Notes ready · test coming soon - Functions and Modular Programming
Parameters, scope and return values
Notes ready · test coming soon - Society, Law and Ethics
Digital footprints, IPR and licensing
Notes ready · test coming soon
Class 12
Physics
- Electric Charges and Fields
Coulomb's law, superposition and Gauss's law
Notes ready · test coming soon - Electrostatic Potential and Capacitance
Potential due to point charge and dipole
Notes ready · test coming soon - Current Electricity
Drift velocity, resistivity and Kirchhoff's rules
Notes ready · test coming soon - Moving Charges and Magnetism
Biot-Savart, Ampere's law and force on conductors
Notes ready · test coming soon - Magnetism and Matter
Bar magnet as a solenoid and magnetic dipole
Notes ready · test coming soon - Electromagnetic Induction
Faraday and Lenz laws, motional emf
Notes ready · test coming soon - Alternating Current
Phasors, LCR circuit and resonance
Notes ready · test coming soon - Electromagnetic Waves
Displacement current and Maxwell's equations idea
Notes ready · test coming soon - Ray Optics and Optical Instruments
Mirror/lens formula, TIR and prism
Notes ready · test coming soon - Wave Optics
Huygens principle, YDSE fringe width
Notes ready · test coming soon - Dual Nature of Radiation and Matter
Photoelectric equation and stopping potential
Notes ready · test coming soon - Atoms and Nuclei
Bohr model, spectral series
Notes ready · test coming soon - Semiconductor Electronics
Intrinsic/extrinsic semiconductors and p-n junction
Notes ready · test coming soon
Chemistry
- Solutions
Raoult's law, deviations and azeotropes
Notes ready · test coming soon - Electrochemistry
Nernst equation and cell EMF
Notes ready · test coming soon - Chemical Kinetics
Rate laws, order determination and half-life
Notes + 30-question test - The d- and f-Block Elements
Variable oxidation states and colour
Notes ready · test coming soon - Coordination Compounds
IUPAC naming, isomerism and VBT/CFT
Notes ready · test coming soon - Haloalkanes and Haloarenes
SN1 vs SN2 mechanism and stereochemistry
Notes ready · test coming soon - Alcohols, Phenols and Ethers
Preparation, acidity order and distinguishing tests
Notes ready · test coming soon - Aldehydes, Ketones and Carboxylic Acids
Nucleophilic addition and named reactions
Notes ready · test coming soon - Amines
Basicity order in gas and aqueous phase
Notes ready · test coming soon - Biomolecules
Carbohydrates, proteins, enzymes, vitamins, nucleic acids
Notes ready · test coming soon - Practical Chemistry: Salt Analysis and Titration
Systematic cation-anion tests
Notes ready · test coming soon
Biology
- Sexual Reproduction in Flowering Plants
Microsporogenesis, megasporogenesis, double fertilisation
Notes ready · test coming soon - Human Reproduction and Reproductive Health
Gametogenesis, menstrual cycle, embryonic development
Notes ready · test coming soon - Principles of Inheritance and Variation
Mendelian and non-Mendelian ratios
Notes ready · test coming soon - Molecular Basis of Inheritance
DNA structure, replication, transcription, translation
Notes ready · test coming soon - Evolution
Evidences, Hardy-Weinberg principle
Notes ready · test coming soon - Human Health and Disease
Immunity types, common diseases and pathogens
Notes ready · test coming soon - Microbes in Human Welfare
Microbes in food, industry and sewage treatment
Notes ready · test coming soon - Biotechnology: Principles and Processes
Restriction enzymes, vectors, PCR and bioreactors
Notes ready · test coming soon - Biotechnology and Its Applications
Bt crops, RNAi, gene therapy and transgenic animals
Notes ready · test coming soon - Organisms, Populations and Ecosystem
Population growth models and interactions
Notes ready · test coming soon - Biodiversity and Conservation
Patterns of biodiversity and loss
Notes ready · test coming soon
Mathematics
- Relations and Functions
One-one, onto and invertible functions
Notes ready · test coming soon - Inverse Trigonometric Functions
Principal value branches
Notes ready · test coming soon - Matrices and Determinants
Operations, transpose and inverse using adjoint
Notes ready · test coming soon - Continuity and Differentiability
Checking continuity of piecewise functions
Notes ready · test coming soon - Applications of Derivatives
Rate of change, increasing-decreasing functions
Notes ready · test coming soon - Integrals
Substitution, partial fractions and by parts
Notes ready · test coming soon - Applications of Integrals
Area under simple curves
Notes ready · test coming soon - Differential Equations
Order, degree, variable separable
Notes ready · test coming soon - Vector Algebra
Dot, cross product and projections
Notes ready · test coming soon - Three Dimensional Geometry
Direction cosines and equations of line/plane
Notes ready · test coming soon - Linear Programming
Formulation and feasible region
Notes ready · test coming soon - Probability
Conditional probability and Bayes theorem
Notes ready · test coming soon
English
- Reading Comprehension and Note Making
Case-based passages and summary writing
Notes ready · test coming soon - Writing: Notice, Invitation and Letters
Format accuracy earns easy marks
Notes ready · test coming soon - Writing: Article and Report Writing
Structured argument with facts
Notes ready · test coming soon - Grammar: Tenses, Modals and Error Correction
Editing, gap-filling and reordering
Notes ready · test coming soon - Literature: Flamingo (Prose)
Theme, characters and social message
Notes ready · test coming soon - Literature: Flamingo (Poetry)
Central idea, imagery and poetic devices
Notes ready · test coming soon - Literature: Vistas
Plot, symbolism and value points
Notes ready · test coming soon
Computer Science
- Python Revision: Functions and File Handling
Text, binary and CSV file operations
Notes ready · test coming soon - Data Structures: Stack
LIFO operations push, pop, peek
Notes ready · test coming soon - Computer Networks
Topologies, devices and transmission media
Notes ready · test coming soon - Database Management and SQL
DDL and DML commands, constraints
Notes ready · test coming soon - Interface Python with MySQL
Connection, cursor and query execution
Notes ready · test coming soon - Society, Law and Ethics
Cybercrime, IT Act, IPR and licensing
Notes ready · test coming soon