RBSE Class 9th Science Syllabus 2026-27: Chapter-Wise Topics and Marks Weightage

Students preparing for the Class 9 Science exam under the Board of Secondary Education, Rajasthan (Ajmer), should start their preparation with the latest RBSE Class 9th Science Syllabus 2026-27. It helps students understand what to study and prepare according to the official syllabus for the current academic session.

The syllabus includes 12 chapters carrying a total of 100 marks, with a theory exam duration of 3 hours 15 minutes. It also contains the chapter-wise topics, marks distribution, exam pattern, and the prescribed NCERT textbook, helping students plan their preparation more effectively.

RBSE Class 9th Science Syllabus Overview

The Science Syllabus for RBSE Class 9th includes 12 chapters from the prescribed NCERT Science textbook. The theory examination carries 100 marks with a duration of 3 hours 15 minutes. The syllabus specifies the chapter-wise marks distribution, helping students understand the exam pattern and prepare accordingly.

RBSE Class 9th Science Syllabus 2026-27 PDF

Students can download the RBSE Class 9th Science Syllabus 2026-27 PDF to access the complete chapter-wise syllabus, exam pattern, marks distribution, and prescribed NCERT textbook in one place. The PDF helps students prepare according to the official syllabus prescribed by the Board of Secondary Education, Rajasthan, Ajmer.

RBSE Class 9th Science Syllabus Chapter-Wise 

Below is the complete chapter-wise breakdown of the RBSE Class 9th Science Syllabus 2026-27, covering the topics prescribed by the Board of Secondary Education, Rajasthan (Ajmer) for the current academic session.

Chapter 1: Matter in Our Surroundings 

• Physical nature of matter: Matter is made up of particles, Size of particles of matter, characteristics of particles of matter- space between particles, Mobility of particles, Attraction between particles.

• States of matter: Solid state, Liquid state, Gaseous state.

• Change in state of matter and factors: Temperature, Pressure.

• Evaporation: Factors influencing evaporation, Cooling due to evaporation.

Chapter 2: Purity of Matter Around Us 

• Mixture - Definition, Types of mixture.

• Solution - Concentration, Suspension, Colloidal Solution.

• Physical and Chemical Changes

• Types of pure substances - Elements, Compounds.

• Difference between mixture and compound.

Chapter 3: Atoms and Molecules 

• Laws of Chemical Combination - Law of conservation of mass, Law of constant proportions.

• Atoms - Modern-day symbols of Atoms of elements, Atomic mass, Existence of atoms.

• Molecules - Molecules of elements, Molecules of compounds.

• Ions

• Writing of chemical formulae - Formulae of simple compounds.

• Molecular mass - Formula unit mass.

Chapter 4: Structure of the Atom 

• Charged particles in matter

• Structure of an Atom - Thomson's model of an Atom, Rutherford's model of an Atom, Bohr's model of an Atom.

• Neutron

• Distribution of electrons in different orbits (shells)

• Valency

• Atomic number and mass number

• Isotopes – Isobars

Chapter 5: The Fundamental Unit of Life 

• Structure of living organisms

• Structural organisation of cell - Plasma membrane or cell membrane, Cell wall, Nucleus, Cytoplasm.

• Cell organelles - Endoplasmic reticulum, Golgi apparatus, Lysosomes, Mitochondria, Plastids, Vacuoles.

• Cell division

Chapter 6: Tissues 

• Tissues in plants and animals

• Plant Tissues – Meristematic Tissue, Permanent Tissue.

• Permanent Tissue – Simple Permanent Tissue, Complex Permanent Tissue.

• Animal Tissues – Epithelial Tissue, Connective Tissue, Muscular Tissue, Nervous Tissue.

Chapter 7: Motion 

• Describing Motion – Straight line Motion, Uniform Motion and non-uniform Motion.

• Measuring the rate of Motion – Speed with direction, Rate of change of velocity.

• Graphical representation of Motion – Distance-time graphs, Velocity-time graph.

• Equations of motion

• Uniform circular Motion

Chapter 8: Force and Laws of Motion 

• Balanced and Unbalanced forces

• First Law of Motion

• Inertia and Mass

• Second Law of Motion – Mathematical Formulation of second Law of Motion.

• Third Law of Motion

Chapter 9: Gravitation 

• Gravitation – Universal Law of gravitation, Importance of the Universal Law of gravitation.

• Free fall – To calculate the value of g, Motion of objects under the influence of the gravitational force of the Earth.

• Mass, Weight – Weight of an object on the moon.

• Thrust and pressure – Pressure in fluids.

• Buoyancy

• Floating or sinking of objects on the surface of water

• Archimedes principle

Chapter 10: Work and Energy 

• Not much ‘Work’ in spite of working hard

• Scientific concept of work

• Work done by a Constant force

• Energy – Forms of energy, Kinetic energy, Potential energy, Potential energy of an object at a height.

• Interchangeable forms of energy

• Law of conservation of energy

• Rate of doing work

Chapter 11: Sound 

• Production of sound

• Propagation of sound – Sound waves are longitudinal waves.

• Characteristics of Sound waves

• Speed of sound in different media

• Reflection of sound – Echo, Reverberation.

• Uses of multiple reflection of sound

• Range of hearing

• Applications of ultrasound

Chapter 12: Improvement in Food Resources 

• Improvement in Crop Yields – Crop Variety Improvement, Crop Production Management, Nutrient Management, Irrigation, Cropping Patterns, Crop Protection Management.

• Animal Husbandry – Cattle Farming, Poultry Farming.

• Fish Production – Marine Fisheries, Inland Fisheries.

• Beekeeping.

RBSE Class 9 Science Exam Pattern 2026-27

As per the official syllabus, the Class 9 Science paper is a theory-only examination with the following pattern:

The full syllabus is divided into 12 chapters spread across Physics, Chemistry, and Biology, together carrying the complete 100 marks.

RBSE Class 9th Science Chapter-Wise Marks Weightage 

The RBSE Class 9th Science Syllabus 2026-27 assigns marks to each chapter to help students understand the importance of different topics in the theory examination. Referring to the chapter-wise weightage enables students to prioritise high-scoring chapters and prepare according to the official syllabus prescribed by the Board of Secondary Education, Rajasthan (Ajmer).

The RBSE Class 9th Science Syllabus 2026-27 provides a clear roadmap for preparing for the annual examination. By understanding the chapter-wise topics, marks distribution, and exam pattern, students can plan their studies effectively and build a strong foundation in Physics, Chemistry, and Biology.