CBSE Syllabus for Class 9 Science 2026-27
The Class IX Science curriculum for the academic year 2026-27 marks a significant shift towards an integrated and inquiry-based learning experience. Aligned with the National Education Policy (NEP) 2020 and the National Curriculum Framework for School Education (NCF-SE) 2023, this syllabus moves beyond traditional rote memorization to foster essential skills like critical thinking, evidence-based reasoning, and scientific curiosity.
By bridging the gaps between Biology, Chemistry, Physics, and Earth Science, the curriculum encourages students to explore the interconnectedness of the natural world, preparing them to approach real-world challenges with a rational and scientific temper. This is why we bring you a comprehensive breakdown of the CBSE Class IX Science syllabus, from the marking scheme to the practical assessments.
1.0Overview of Science Syllabus of Class 9
The CBSE Class 9 syllabus for science is evenly divided into three major branches of science, namely:
The curriculum for these branches encourages students to explore and reason about the physical world. The students are tested at the end of the academic year via a final theory exam carrying 80 marks and internal assessments of 20 marks.
2.0Chapter–wise CBSE Class IX Science Syllabus
To a great extent, science is one of the subjects getting the most changes in the NCERT Class 9 syllabus 2026-27. Alongside Physics, Chemistry, and Biology, a new branch named Earth Science has been brought into view.
3.0Topic-wise Detailed CBSE Class 9 Science Syllabus 2026-27
The CBSE Class 9 Science Syllabus 2026–27 is based on the latest NCERT curriculum and follows a competency-based approach to learning. The revised syllabus integrates Physics, Chemistry, Biology, and Earth Science to help students build scientific knowledge, analytical thinking, and practical problem-solving skills.
Chapter 1: Exploration – Entering the World of Secondary Science
- Nature and scope of science.
- Scientific inquiry, observation, and experimentation.
- Measurement, data collection, and scientific communication.
- Science in everyday life and sustainable development.
Chapter 2: Cell – The Building Block of Life
- Discovery of cellPlant and animal cells.
- Plant and animal cells
- Prokaryotic and eukaryotic cells
- Cell as the structural and functional unit of life
- Structure and functions of key cell organelles:
- Nucleus
- Mitochondria
- Chloroplast
- Endoplasmic reticulum
- Vacuoles
- Plasma membrane
- Cell wall
- Permeability of cell membranes
- Cellular division and cancer
- Recent advancements in cell biology
Chapter 3: Tissues in Action
- Tissues: Introduction and importance
- Level of organisation in living organisms
- Plant and animal tissues
- Types of plant tissues
- Meristematic tissues (types and function of each)
- Permanent tissues (types, structure and function of each)
- Animal tissues
- Overview of epithelial, connective, muscular and nervous tissues (types, structure and function of each)
- Elementary idea of the musculoskeletal system
- Care of the musculoskeletal system: injuries, postural care, nutrition and exercise
Chapter 4: Describing Motion Around Us
- displacement
- velocity
- acceleration
- Graphical representation of motion for an object moving in a straight line in one direction (with constant velocity and constant acceleration)
- Kinematic equations for motion in a straight line with constant acceleration (by graphical method)
- Elementary idea of uniform circular motion
Chapter 5: Exploring Mixtures and Their Separation
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- Homogeneous and heterogeneous mixtures
- Solutions, suspensions, colloids and their properties
- Various ways to express concentration of solutions:
- Mass by mass percentage of a solution
- Mass by volume percentage of a solution
- Volume by volume percentage of a solution
- Separation techniques based on the physical properties of components, including:
- Crystallisation
- Distillation
- Paper chromatography
- Sublimation
- Centrifugation
- Coagulation
Chapter 6: How Forces Affect Motion
- balanced forces
- unbalanced forces
- Force of friction
- Newton's first law of motion
- Newton's second law of motion
- Newton's third law of motion
Chapter 7: Work, Energy and Simple Machines
- Concept of work; work done by a constant force
- Work-Energy theorem
- Mechanical energy, kinetic energy and potential energy, and conversion between potential energy and kinetic energy
- Conservation of energy
- Power
- Simple machines and their mechanical advantage (pulley, inclined plane, lever)
Chapter 8: Journey Inside the Atom
- Atoms are the basic units of elements
- Atoms consist of subatomic particles
- Atomic Models
- Thomson’s Model,
- Rutherford’s Model
- Bohr’s Model
- Distributions of electrons in elements (up to 18 elements)
- Symbols
- Valency as the combining capacity
- Atomic number
- Mass number
- Isotopes
- Isobars
Chapter 9: Atomic Foundations of Matter
- Law of conservation of mass
- Law of constant proportion
- Dalton's Atomic Theory
- Molecules of elements and molecules of covalent compounds and their properties
- Ions, ionic compounds and their properties
- Writing chemical formulae
- Molecular mass
- Formula unit mass
Chapter 10: Sound Waves – Characteristics and Applications
- Production of sound
- Propagation of sound (as a longitudinal wave through a medium)
- Graphical representation of sound wave
- Characteristics of sound wave:
- wavelength
- frequency
- time period
- amplitude
- intensity
- speed
- Human perception of sound (pitch, loudness)
- Propagation of sound in different media (solid, liquid)
- Reflection of sound (echo, reverberation), echolocation
Chapter 11: Reproduction – How Life Continues
- Introduction to different forms of reproduction—sexual and asexual
- Types of asexual reproduction with examples
- Sexual reproduction in flowering plants (flower and its parts, pollination, fertilisation, seed dispersal)
- Sexual reproduction in humans: male and female reproductive systems (structure and function, formation of gametes, sperm and egg, fertilisation, pregnancy and development of embryo, menstrual cycle)
- Reproductive health and hygiene
- Introduction to birth control methods and importance
Chapter 12: Patterns in Life – Diversity and Classification
- Importance of classification
- Five kingdoms and their key features with examples
- Major division of animals and plants
- Binomial nomenclature
- Acellular entities: viruses
Chapter 13: Earth as a System – Energy, Matter and Life
- Earth as interconnected system
- Nature of solar energy:
- solar radiation
- electromagnetic spectrum
- speed of light
- Solar energy interaction with the Earth's surface and differential heating of the Earth (the role of the atmosphere and the Earth's surface)
- Differential warming of the Earth causes winds
- Biogeochemical cycles:
- Water cycle
- Carbon cycle
- Nitrogen cycle
- Oxygen cycle
- Human impact on Earth's system
4.0Internal Assessment
Internal assessment in the science syllabus of class 9 is designed to assess different skills of students over the academic year. It is divided into four major portions of 5 marks each, combining a total of 20 marks. These portions are:
5.0CBSE Class 9 Syllabus: Other Subjects
6.0Study Aids Beyond the NCERTs
While textbooks are the core of the CBSE syllabus for Class 9 Science, a complete understanding of the subject develops from the combination of various study aids with the NCERTs. Here’s a complete list of powerful tools that can go beyond your traditional textbook and eventually enhance your science prep:
- NCERT Solutions: NCERT solutions are excellent for understanding the step-by-step reasons and facts behind the answers to every question in the textbook. Various solution guides are available online as well as in the market, making them easily available.
- NCERT Exemplar Problems: These offer higher-order thinking questions that adhere to the class 9 science syllabus and refine problem-solving ability, particularly in Physics and Chemistry.
- Previous Year Papers: Solving questions from previous exams helps students become accustomed to the paper pattern, question types, and timing, which are vital for excelling in the CBSE Class IX Science syllabus.
- Virtual Labs and Simulations: Various digital platforms enable students to perform virtual experiments, making them ideal for learning lab concepts when access to physical lab space is not feasible.
- CBSE Support Material: Formulated and released by CBSE and other board educational institutions, this material features additional questions, practice problems, and sample question papers that offer comprehensive practice in key topics.
- Science Kits and Experiments: Practical kits in Physics (such as circuit boards), Chemistry (simple chemical reactions), and Biology (microscope kits) tend to make learning more three-dimensional.
- Reference Books: For advanced and detailed study, use extra books available in the market. These can help understand science concepts in more detail. Some of the most popular reference books are: Lakhmir Singh Science for Class 9th, All in One by Arihant, NCERT at Your Fingertips
- Flashcards and Mind Maps: These are ideal for memorising definitions, formulas, and cycles, especially useful in Biology and Chemistry sections.
- Sample Papers and Mock Tests: Solving these from time to time aids in time management and boosts confidence before exams.
7.0Tips to Ace Your Exam
Scoring well in Science requires a smart mix of understanding concepts and consistent revision. Here are some practical tips to excel in your final science exam:
- Use extra study aids, but also stick to the NCERT textbook as your primary study source, as it covers the entire CBSE syllabus for Class 9 Science better than any other resource.
- Revise regularly using class notes, mind maps, and flashcards to reinforce key definitions, formulas, and diagrams.
- Practice numerical problems in Physics and Chemistry thoroughly, as they often carry high weightage.
- Solve previous year papers and sample questions to build confidence and improve time management.
- Focus on practicals—prepare observation-based questions from experiments listed in the syllabus.
- Break down chapters into small, daily goals for easier learning and retention.
Stay updated with the CBSE Class IX Science syllabus and make sure to download the official CBSE syllabus for Class 9 Science PDF to start your exam prep.
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