The class 9 science syllabus 2026 27 has become one of the most searched topics among CBSE students, parents and teachers. Science in Class 9 builds the base for Class 10 board exams and future subjects such as Physics, Chemistry and Biology. A clear understanding of the updated syllabus helps students study smartly and score higher marks.
The latest class 9 science syllabus 2026 27 is designed according to the revised CBSE and NCERT pattern. The subject is divided into four major units. These units include Matter and Its Nature, Organisation in the Living World, Motion and Force, and Food Production.
Students should not start preparation without checking the complete chapter list, marks distribution and important topics. When you know what to study and which chapters carry more weightage, you can save time and improve your performance.
In this article, you will get:
- Complete class 9 science syllabus 2026 27
- Unit-wise and chapter-wise topics
- Marks distribution table
- Important practicals
- Best preparation strategy
- Frequently asked questions
- Tips to score above 90 marks
Overview of Class 9 Science Syllabus 2026 27
The CBSE Class 9 Science subject contains theory and internal assessment. The total marks are 100. Out of these, 80 marks are for the written examination and 20 marks are for internal assessment.
| Particulars | Details |
|---|---|
| Subject Name | Science |
| Class | 9 |
| Session | 2026-27 |
| Board | CBSE |
| Total Marks | 100 |
| Theory Marks | 80 |
| Internal Assessment | 20 |
| Number of Main Units | 4 |
| Important Subjects Included | Physics, Chemistry, Biology |
The class 9 science syllabus 2026 27 mainly focuses on concept clarity, experiments, observation and practical learning. Students are expected to understand the topics instead of memorising them.
Unit-Wise Marks Distribution for Class 9 Science Syllabus 2026 27
Before studying the chapters, students must know the marks weightage. This helps in deciding which unit needs more attention.
| Unit No. | Unit Name | Marks |
|---|---|---|
| Unit I | Matter – Its Nature and Behaviour | 25 |
| Unit II | Organisation in the Living World | 22 |
| Unit III | Motion, Force and Work | 27 |
| Unit IV | Food Production | 6 |
| Internal Assessment | Practical, Notebook, Project | 20 |
| Total | Overall Marks | 100 |
Unit III carries the highest marks in the class 9 science syllabus 2026 27. Therefore, students should give extra attention to chapters related to motion, force, gravitation and sound.
Unit I: Matter – Its Nature and Behaviour
This unit belongs mainly to Chemistry. It teaches students about matter, atoms, molecules and the structure of substances.
| Chapter Number | Chapter Name |
|---|---|
| Chapter 1 | Matter in Our Surroundings |
| Chapter 2 | Is Matter Around Us Pure? |
| Chapter 3 | Atoms and Molecules |
| Chapter 4 | Structure of the Atom |
Chapter 1: Matter in Our Surroundings
This is the first chapter in the class 9 science syllabus 2026 27. It explains what matter is and how it exists around us.
Important topics included in this chapter are:
- Definition of matter
- Characteristics of particles of matter
- States of matter – solid, liquid and gas
- Properties of solids, liquids and gases
- Change of state
- Melting and freezing
- Evaporation and condensation
- Sublimation
- Factors affecting evaporation
Students should learn examples from daily life. For example, ice melting into water, water becoming steam and perfume spreading in air.
Important Concepts from Matter in Our Surroundings
| Topic | Key Idea |
|---|---|
| Solid | Fixed shape and fixed volume |
| Liquid | Fixed volume but no fixed shape |
| Gas | No fixed shape and no fixed volume |
| Evaporation | Liquid changes into gas |
| Condensation | Gas changes into liquid |
This chapter is important because many questions are asked from change of state and properties of matter.
Chapter 2: Is Matter Around Us Pure?
The second chapter in the class 9 science syllabus 2026 27 explains the difference between pure substances and mixtures.
Main topics are:
- Pure substances
- Mixtures
- Homogeneous mixture
- Heterogeneous mixture
- Solution
- Suspension
- Colloid
- Physical and chemical changes
- Elements, compounds and mixtures
Difference Between Mixture and Compound
| Basis | Mixture | Compound |
|---|---|---|
| Formation | Physical mixing | Chemical combination |
| Composition | Variable | Fixed |
| Separation | Easy | Difficult |
| Example | Salt and sand | Water |
Students should practice numerical and practical-based questions from this chapter because CBSE often asks them.
Chapter 3: Atoms and Molecules
This chapter teaches the basic particles that make all substances.
Important topics are:
- Laws of chemical combination
- Law of conservation of mass
- Law of constant proportions
- Dalton’s atomic theory
- Atoms and molecules
- Atomic mass
- Molecular mass
- Chemical formula
- Writing formulae of compounds
Common Chemical Formulae
| Compound | Formula |
|---|---|
| Water | H2O |
| Carbon Dioxide | CO2 |
| Sodium Chloride | NaCl |
| Ammonia | NH3 |
| Sulphuric Acid | H2SO4 |
Students should memorise these formulae because they are very useful in later classes.
Chapter 4: Structure of the Atom
This is one of the most important chapters in the class 9 science syllabus 2026 27.
Topics covered are:
- Electrons, protons and neutrons
- Discovery of subatomic particles
- Thomson’s model of atom
- Rutherford’s model of atom
- Bohr’s model of atom
- Atomic number
- Mass number
- Valency
- Isotopes and isobars
Difference Between Isotopes and Isobars
| Feature | Isotopes | Isobars |
|---|---|---|
| Atomic Number | Same | Different |
| Mass Number | Different | Same |
| Example | Carbon-12 and Carbon-14 | Calcium-40 and Argon-40 |
This chapter is often considered difficult. Students should revise diagrams and examples again and again.
Unit II: Organisation in the Living World
This unit belongs to Biology. It explains cells, tissues, organisms and health.
| Chapter Number | Chapter Name |
|---|---|
| Chapter 5 | The Fundamental Unit of Life |
| Chapter 6 | Tissues |
| Chapter 7 | Diversity in Living Organisms |
| Chapter 8 | Why Do We Fall Ill? |
Chapter 5: The Fundamental Unit of Life
The cell is called the basic unit of life. This chapter is very important in the class 9 science syllabus 2026 27.
Topics included are:
- Discovery of cell
- Cell theory
- Prokaryotic and eukaryotic cells
- Plant cell and animal cell
- Cell membrane
- Cell wall
- Cytoplasm
- Nucleus
- Cell organelles
Difference Between Plant Cell and Animal Cell
| Feature | Plant Cell | Animal Cell |
|---|---|---|
| Cell Wall | Present | Absent |
| Chloroplast | Present | Absent |
| Shape | Fixed | Irregular |
| Vacuole | Large | Small |
Students should draw neat labelled diagrams of plant cell and animal cell.
Chapter 6: Tissues
This chapter explains groups of cells that perform similar functions.
Main topics are:
- Definition of tissue
- Plant tissues
- Meristematic tissue
- Permanent tissue
- Animal tissues
- Epithelial tissue
- Connective tissue
- Muscular tissue
- Nervous tissue
Types of Plant Tissues
| Tissue Type | Function |
|---|---|
| Meristematic Tissue | Helps in growth |
| Permanent Tissue | Performs permanent functions |
| Xylem | Carries water |
| Phloem | Carries food |
This chapter has many diagrams. Students should practice them regularly.
Chapter 7: Diversity in Living Organisms
The class 9 science syllabus 2026 27 also includes classification of living organisms.
Topics covered are:
- Importance of classification
- Hierarchy of classification
- Five kingdom classification
- Monera
- Protista
- Fungi
- Plantae
- Animalia
Classification Levels
| Level | Example |
|---|---|
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Mammalia |
| Order | Primates |
| Family | Hominidae |
| Genus | Homo |
| Species | Homo sapiens |
This chapter requires memorisation and repeated revision.
Chapter 8: Why Do We Fall Ill?
This chapter teaches students about diseases and health.
Important topics are:
- Difference between health and disease
- Causes of diseases
- Acute and chronic diseases
- Infectious and non-infectious diseases
- Vector-borne diseases
- Prevention and cure
- Importance of hygiene
Types of Diseases
| Disease Type | Example |
|---|---|
| Infectious Disease | Malaria |
| Non-Infectious Disease | Diabetes |
| Acute Disease | Cold |
| Chronic Disease | Tuberculosis |
Students should learn preventive measures because such questions are often asked in exams.
Unit III: Motion, Force and Work
This is the most important unit in the class 9 science syllabus 2026 27 because it carries the highest marks.
| Chapter Number | Chapter Name |
|---|---|
| Chapter 9 | Motion |
| Chapter 10 | Force and Laws of Motion |
| Chapter 11 | Gravitation |
| Chapter 12 | Work and Energy |
| Chapter 13 | Sound |
Chapter 9: Motion
Motion is one of the easiest and most scoring chapters.
Topics covered are:
- Distance and displacement
- Speed and velocity
- Uniform and non-uniform motion
- Acceleration
- Distance-time graph
- Velocity-time graph
- Uniform circular motion
Important Formulae of Motion
| Formula | Meaning |
|---|---|
| Speed = Distance / Time | Speed formula |
| Velocity = Displacement / Time | Velocity formula |
| Acceleration = Change in Velocity / Time | Acceleration formula |
Students should solve numerical questions daily.
Chapter 10: Force and Laws of Motion
This chapter is based on Newton’s laws.
Topics included are:
- Force
- Balanced and unbalanced force
- Newton’s first law
- Newton’s second law
- Newton’s third law
- Inertia
- Momentum
Newton’s Laws of Motion
| Law | Statement |
|---|---|
| First Law | An object remains at rest or motion unless acted upon |
| Second Law | Force is equal to mass multiplied by acceleration |
| Third Law | Every action has an equal and opposite reaction |
Many application-based questions come from this chapter.
Chapter 11: Gravitation
This chapter explains the force of gravity.
Topics are:
- Universal law of gravitation
- Gravity on Earth
- Mass and weight
- Free fall
- Thrust and pressure
- Buoyancy
- Archimedes’ principle
Difference Between Mass and Weight
| Basis | Mass | Weight |
|---|---|---|
| Definition | Amount of matter | Force due to gravity |
| Unit | Kilogram | Newton |
| Changes | Consta |
