CBSE Class 9 Science 2026-27 Syllabus
The syllabus consists of 12 chapters.
1. Cell
- Discovery of cell
- Plant and animal cells
- Prokaryotic and eukaryotic cells
- Cell as a structural and functional unit of life; structure and function of key organelles (nucleus, mitochondria, chloroplast, endoplasmic reticulum, vacuoles, plasma membrane, cell wall)
- Permeability of cell membranes
- Cellular division and cancer
- Recent advancement in cell biology
2. Tissues
- Level of organisation in the 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 (epithelial, connective, muscular and nervous tissues - types, structure and function of each)
- Elementary idea of musculoskeletal system
- Care of musculoskeletal system: injuries, postural care, nutrition and exercise
3. Reproduction
- 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
4. Diversity
- Importance of classification
- Five kingdoms and their key features with examples
- Major division of animals and plants
- Binomial nomenclature
- Acellular entities: viruses
5. Exploring Mixtures and their Separation
- 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 and coagulation
6. Structure of an Atom
- Atoms are the basic units of elements
- Atoms consist of subatomic particles
- Atomic Models (Thomson’s Model, Rutherford’s Model, and Bohr’s Model)
- Distributions of electrons in elements (up to 18 elements)
- Symbols
- Valency as the combining capacity
- Atomic number
- Mass number
- Isotopes
- Isobars
7. Atoms and Molecules
- Law of conservation of mass
- Law of constant proportion
- Dalton’s Atomic theory
- Molecules of elements, Molecules of covalent compounds and their properties
- Ions, Ionic compounds and their properties
- Writing chemical formulae
- Molecular mass
- Formula unit mass
8. Earth as a System: Energy, Matter & Life
- Earth as interconnected system
- Nature of solar energy: solar radiation, electromagnetic spectrum, and 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
9. Motion
- Motion - 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
10. Force and Laws of Motion
- Force; balanced and unbalanced forces
- Force of friction
- Newton’s first law of motion
- Newton’s second law of motion
- Newton’s third law of motion
11. Work, Energy and Simple Machines
- Concept of work; work done by a constant force
- Work-Energy theorem
- Mechanical energy, kinetic 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)
12. Sound
- 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