NSEJS Syllabus 2026: Check Subject-Wise Topics, Important Chapters and PDF

The NSEJS Syllabus 2026 is broadly based on the Science and Mathematics syllabus prescribed up to Class 10 by the Central Board of Secondary Education (CBSE). The National Standard Examination in Junior Science (NSEJS) tests students on concepts from Physics, Chemistry, Biology, Environmental Science, and Mathematics.

The NSEJS Science syllabus covers important concepts from Classes 8 to 10, while questions may require students to apply concepts rather than simply recall facts. The NSEJS Olympiad syllabus is designed to test conceptual understanding, logical thinking, and problem-solving skills.

Students preparing for NSEJS should understand the complete NSEJS syllabus topics, identify the NSEJS important topics, and practice higher-level questions regularly.

NSEJS Syllabus 2026 Overview

The NSEJS syllabus is broadly equivalent to the secondary level, up to and including Class 10 CBSE Science and Mathematics. Topics studied in lower classes are also included.

The official syllabus also notes that NSE and INO questions can be non-conventional and difficult. Therefore, students should not prepare only by memorising textbook definitions and formulas.

NSEJS Science Syllabus 2026

The NSEJS Science syllabus includes major topics from Physics, Chemistry, and Biology. It also covers environmental and natural resource-related concepts.

The major areas are:

• Matter and its properties

• Chemical substances and reactions

• Organisation in the living world

• Life processes

• Motion, force, and work

• Effects of current

• Light

• Our environment

• Natural resources

• Food production

NSEJS Syllabus Topics: Chemistry

The Chemistry section focuses on matter, chemical reactions, acids and bases, metals and non-metals, carbon compounds, and the periodic classification of elements.

1. Matter – Nature and Behaviour

Important concepts include:

• States of matter

• Characteristics of solids, liquids, and gases

• Density and volume

• Change of state

• Melting and freezing

• Evaporation and condensation

• Sublimation

• Elements, compounds, and mixtures

• Homogeneous and heterogeneous mixtures

• Colloids and suspensions

• Solutions and concentration

• Separation of components

• Atoms and molecules

• Mole concept

• Atomic and molecular masses

• Isotopes and isobars

2. Chemical Substances – Nature and Behaviour

This section includes:

• Chemical equations

• Balanced chemical equations

• Types of chemical reactions

• Combination reactions

• Decomposition reactions

• Displacement reactions

• Double displacement reactions

• Precipitation reactions

• Neutralization

• Oxidation and reduction

• Acids, bases, and salts

• pH scale

• Sodium hydroxide

• Bleaching powder

• Baking soda

• Washing soda

• Plaster of Paris

• Properties of metals and non-metals

• Reactivity series

• Ionic compounds

• Metallurgical processes

• Corrosion and its prevention

3. Carbon Compounds

Students should prepare:

• Covalent bonding

• Properties of carbon

• Homologous series

• Nomenclature of carbon compounds

• Functional groups

• Saturated and unsaturated hydrocarbons

• Alkanes and alkynes

• Alcohols

• Aldehydes and ketones

• Chemical properties of carbon compounds

• Combustion

• Oxidation

• Addition and substitution reactions

• Ethanol

• Ethanoic acid

• Soaps and detergents

4. Periodic Classification of Elements

Important topics include:

• Need for classification

• Dobereiner's Triads

• Newlands' Law of Octaves

• Mendeleev's Periodic Table

• Modern Periodic Table

• Atomic number

• Valency

• Metallic and non-metallic properties

• Periodic trends

NSEJS Syllabus Topics: Biology

The Biology portion covers cells, tissues, biodiversity, health, life processes, reproduction, heredity, and evolution.

1. Organization in the Living World

Topics include:

• Cell as the basic unit of life

• Prokaryotic and eukaryotic cells

• Plant and animal cells

• Cell membrane and cell wall

• Cell organelles

• Chloroplast

• Mitochondria

• Vacuoles

• Endoplasmic reticulum

• Golgi apparatus

• Nucleus

• Chromosomes

• Plant and animal tissues

• Classification of living organisms

• Scientific naming

• Major groups of plants

• Major groups of animals

2. Health and Diseases

Students should study:

• Health and diseases

• Infectious and non-infectious diseases

• Causes of diseases

• Diseases caused by viruses, bacteria, and protozoans

• Prevention of diseases

• Principles of treatment

• Pulse Polio programme

3. Life Processes

This is one of the important areas of the NSEJS syllabus. It includes:

• Nutrition

• Respiration

• Transportation

• Excretion

• Life processes in plants and animals

• Control and coordination

• Tropic movements

• Plant hormones

• Nervous system

• Reflex action

• Animal hormones

4. Reproduction

Important NSEJS syllabus topics include:

• Reproduction in plants and animals

• Asexual reproduction

• Sexual reproduction

• Reproductive health

• Family planning

• Safe sex

• HIV/AIDS

• Childbearing

• Women's health

5. Heredity and Evolution

Students should cover:

• Heredity

• Mendel's contribution

• Laws of inheritance

• Inheritance of traits

• Sex determination

• Basic concepts of evolution

NSEJS Syllabus Topics: Physics

The Physics syllabus focuses on mechanics, electricity, magnetism, light, sound, and related concepts.

1. Motion, Force and Work

Important topics include:

• Distance and displacement

• Velocity

• Uniform and non-uniform motion

• Acceleration

• Distance-time graphs

• Velocity-time graphs

• Equations of motion

• Uniform circular motion

• Force and motion

• Newton's laws of motion

• Inertia

• Mass and momentum

• Conservation of momentum

• Gravitation

• Universal law of gravitation

• Acceleration due to gravity

• Mass and weight

• Free fall

• Thrust and pressure

• Archimedes' principle

• Buoyancy

• Work, energy, and power

• Kinetic and potential energy

• Conservation of energy

2. Sound

The important topics are:

• Nature of sound

• Propagation of sound

• Speed of sound

• Range of hearing

• Ultrasound

• Reflection of sound

• Echo

• SONAR

• Human ear

3. Effects of Current

This section includes:

• Electric current

• Potential difference

• Ohm's law

• Resistance

• Resistivity

• Factors affecting resistance

• Series and parallel combination of resistors

• Heating effect of current

• Electric power

• Relationship between P, V, I, and R

• Magnetic effects of current

• Magnetic field

• Magnetic field lines

• Current-carrying conductor

• Solenoid

• Electric motor

• Electromagnetic induction

• Electric generator

• Direct current and alternating current

• Domestic electric circuits

4. Light

Students should prepare:

• Reflection of light

• Curved mirrors

• Spherical mirrors

• Centre of curvature

• Principal axis

• Principal focus

• Focal length

• Mirror formula

• Magnification

• Refraction

• Laws of refraction

• Refractive index

• Spherical lenses

• Lens formula

• Magnification

• Power of lens

• Human eye

• Defects of vision

• Correction of vision

• Prism

• Dispersion

• Scattering of light

NSEJS Syllabus Topics: Environment and Natural Resources

Environmental topics are also included in the NSEJS syllabus. Students should cover the following areas:

• Air

• Water

• Soil

• Air pollution

• Water pollution

• Soil pollution

• Ozone layer

• Ozone depletion

• Water cycle

• Oxygen cycle

• Carbon cycle

• Nitrogen cycle

• Ecosystems

• Environmental problems

• Waste management

• Biodegradable and non-biodegradable substances

• Renewable and non-renewable energy

• Fossil fuels

• Solar energy

• Biogas

• Wind energy

• Hydroelectric energy

• Tidal energy

• Nuclear energy

• Conservation of natural resources

• Forest and wildlife conservation

• Coal and petroleum conservation

• Water harvesting

• Sustainable use of resources

NSEJS Mathematics Syllabus 2026

Mathematics is also important for NSEJS preparation. Students are expected to have basic proficiency in mathematical concepts studied up to Class 10.

The major NSEJS syllabus topics for Mathematics include:

• Number systems

• Polynomials

• Linear equations

• Quadratic equations

• Triangles

• Trigonometry

• Circles

• Surface areas and volumes

• Statistics

Students should practice numerical problems based on these concepts because Mathematics is useful for solving Physics and other application-based questions as well.

NSEJS Important Topics 2026

Although the official syllabus does not provide a fixed chapter-wise weightage, some areas are particularly important because they involve strong conceptual understanding and numerical or application-based questions.

Important Physics Topics

• Motion and equations of motion

• Newton's laws

• Gravitation

• Work, energy, and power

• Electricity

• Magnetic effects of current

• Electromagnetic induction

• Light

• Sound

Important Chemistry Topics

• Atoms and molecules

• Chemical reactions

• Acids, bases, and salts

• Metals and non-metals

• Carbon compounds

• Periodic classification

• Mole concept

Important Biology Topics

• Cell structure

• Tissues

• Life processes

• Reproduction

• Heredity

• Evolution

• Health and diseases

• Biodiversity

• Environment

Important Mathematics Topics

• Number systems

• Algebra

• Linear equations

• Quadratic equations

• Geometry

• Trigonometry

• Statistics

• Surface areas and volumes

How to Prepare the NSEJS Syllabus 2026

A structured preparation strategy can help students cover the large syllabus effectively.

Start with NCERT

Begin with NCERT Science and Mathematics textbooks from Classes 8 to 10. Make sure the basic concepts are clear before moving to advanced problems.

Make Short Notes

Prepare chapter-wise notes containing:

• Important definitions

• Formulas

• Diagrams

• Chemical reactions

• Important biological processes

• Key concepts

Practice Numerical Questions

Physics and Chemistry require regular numerical practice. Solve different types of problems instead of repeating only easy questions.

Focus on Conceptual Questions

NSEJS questions can be different from standard school questions. Practice questions that ask you to apply a concept to a new situation.

Solve Previous-Year Papers

Previous-year NSEJS papers help you understand the question style, difficulty level, and type of concepts tested.

Revise Regularly

Keep a separate revision schedule for formulas, reactions, diagrams, definitions, and important concepts.

NSEJS Syllabus PDF 2026

Students looking for the NSEJS syllabus PDF should refer to the official syllabus released for the National Standard Examination and Indian National Olympiad. The official syllabus covers Junior Science along with the other NSE subjects.

The NSEJS syllabus PDF can be used as a checklist while preparing each chapter and tracking completed topics.

NSEJS Syllabus PDF 2026 

The NSEJS Syllabus 2026 covers a wide range of Science and Mathematics topics up to the Class 10 CBSE level. Students should give equal importance to Physics, Chemistry, Biology, Environment, and Mathematics while preparing.

Understanding the NSEJS syllabus topics is the first step, but regular practice is equally important. Since the NSEJS Olympiad syllabus can be tested through challenging and application-based questions, students should combine NCERT preparation with Olympiad-level practice and previous-year papers.

PW provides Olympiad exam content, including Olympiad Exam Updates, sample papers, mock tests, guidance sessions, and more. Also, enroll today in the Olympiad Online Batches for preparation.

Related Resources: 

• NSEJS Registration

• NSEJS Syllabus 2026

• NSEJS Previous Year Question Papers

• NSEJS Exam Date