NSO Syllabus 2019– Candidates preparing for NSO 2019 must go through the NSO syllabus for better preparation. SOF (Science Olympiad Foundation) has released the official SOF NSO 2019 syllabus on its official website, sofworld.org. The syllabus of NSO includes all the topics covered in the exam. SOF NSO syllabus from Class 1st to class 12th have been provided below for the ease of students. National Science Olympiad Syllabus mentions the topics included in all the three sections namely Logical Reasoning, Science and Achiever’s Section. Read the complete article below to know more about the NSO Olympiad syllabus and exam pattern of SOF NSO 2019.Latest: NSO answer key 2019 released for class 1 to 12 students. Download now.
The questions asked in Level I of NSO will be 60% from the current class syllabus and 40% from the previous class syllabus.
Questions in Achiever’s Section will be from the current class syllabus only.
Questions of the NSO Level II exam will be from the current class syllabus only.
For the convenience of students, we are sharing the SOF NSO 2019 exam pattern stating the number of questions for different sections, marking scheme, total marks and duration. The exam pattern of NSO is mentioned below.
No. of Questions
Marks per Question
Class I to IV
Class V to X
Class XI and XII
Physics & Chemistry
The details of syllabus of NSO for all classes is given below:
Total Questions: 35
Time: 1 hr
Section 1: Spatial Understanding, Grouping, Measuring Units, Analogy, Geometrical Shapes, Patterns, Odd One Out, Ranking Test.
Section 2: Living and Non-living things, Plants, Animals, Human Beings and Their Needs, Good Habits and Safety Rules, Air and Water, Weather and The Sky.
Section 3: Higher Order Thinking Questions - Syllabus as per Section 2.
Section 1: Patterns, Measuring Units, Odd One Out, Series Completion, Geometrical Shapes, Analogy, Ranking Test, Grouping of Figures, Coding-Decoding, Embedded Figures.
Section 2: Plants, Animals, Human Body, Food, Housing and Clothing, Family and Festivals, Occupations, Good Habits and Safety Rules, Transport and Communication, Air, Water and Rocks, Earth and Universe.
Section 1: Patterns, Analogy and Classification, Coding-Decoding, Mirror Images, Embedded Figures, Alphabet Test, Ranking Test, Grouping of Figures, Figure Matrix, Geometrical Shapes, Days and Dates & Possible Combinations.
Section 2: Plants and Animals, Birds, Food, Housing and Clothing, Transport and Communication, Human Body, Earth and Universe, Matter and Materials, Light, Sound and Force, Our Environment.
Section 1: Patterns, Alphabet Test, Coding-Decoding, Mirror Images, Embedded Figures, Geometrical Shapes and Solids, Ranking Test, Direction Sense Test, Days and Dates & Possible Combinations, Analogy and Classification.
Section 2: Plants, Animals, Food and Digestion, Clothing, Matter and Materials, Force, Work and Energy, Our Environment, Earth and Universe.
Total Questions: 50
Section 1: Patterns, Analogy and Classification, Coding-Decoding, Geometrical Shapes, Mirror Images, Water Images, Embedded Figures, Direction Sense Test, Ranking Test, Alphabet Test and Logical Sequence of Words, Puzzle Test.
Section 2: Animals, Human Body and Health, Plants, Natural Resources, Pollution and Calamities, Earth and Universe, Matter, Force, Work and Energy.
Section 1: Verbal and Non-Verbal Reasoning.
Section 2: Motion and Measurement of Distances, Light, Shadows and Reflections, Electricity and Circuits, Fun with Magnets, Our Environment (Water, Air Around us, Garbage in Garbage out), Sorting and Separation of Materials, Changes Around Us, The World of Living (Characteristics of Living Beings, Parts of Plants, Body Movements in Animals and Adaptation), Food and its Components, Fibre to Fabric.
Section 2: Heat, Motion and Time, Electric Current and its Effects, Winds, Storms and Cyclones, Light, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Fibre to Fabric, Nutrition in Plants and Animals, Respiration in Organisms, Transportation in Plants and Animals, Reproduction in Plants, Natural Resources and Their Conservation (Soil, Water: A Precious Resource, Forests our Lifeline, Wastewater Story).
Section 2: Crop Production and Management, Microorganisms, Synthetic Fibres and Plastics, Metals and Non-metals, Coal and Petroleum, Combustion and Flame, Conservation of Plants and Animals, Cell, Reproduction and Endocrine System, Force and Pressure, Friction, Sound, Chemical Effects of Electric Current, Some Natural Phenomena, Light, Stars and the Solar System, Pollution of Air and Water.
Section 2: Motion, Force and Laws of Motion, Gravitation, Work and Energy, Sound, Matter in Our Surroundings, Is Matter Around Us Pure, Atoms and Molecules, Structure of Atom, Cell-The Fundamental Unit of Life, Tissues, Diversity in Living Organisms, Why Do We Fall III, Natural Resources, Improvement in Food Resources.
Section 2: Chemical Reactions and Equations, Acids, Bases and Salts, Metals and Non-metals, Carbon and Its Compounds, Periodic Classification of Elements, Life Processes, Control and Coordination, Reproduction in Organisms, Heredity and Evolution, Light-Reflection and Refraction, Human Eye and Colourful World, Electricity, Magnetic Effects of Electric Current, Sources of Energy, Our Environment and Its Management.
Section 1: Physics: Units and Measurements, Mechanics, Properties of Matter, Heat and Thermodynamics, Oscillations, Waves.
Chemistry: Some Basic Concepts of Chemistry, Structure of Atom, Classification of Elements and Periodicity in Properties, Chemical Bonding and Molecular Structure, States of Matter, Thermodynamics, Equilibrium, Redox Reactions, Hydrogen, The s-Block Elements, The p-Block Elements (Groups 13 and 14), Organic Chemistry - Some Basic Principles and Techniques, Hydrocarbons, Environmental Chemistry.
Section 2: Higher Order Thinking Questions - Syllabus as per Section 1.
Section 3: Sets, Relations and Functions, Principle of Mathematical Induction, Logarithms, Complex Numbers & Quadratic Equations, Linear In-equations, Sequences and Series, Trigonometry, Straight Lines, Conic Sections, Permutations and Combinations, Binomial Theorem, Statistics, Mathematical Reasoning, Limits and Derivatives, Probability, Introduction to 3-D Geometry.
Section 3: Diversity in the Living World, Structural Organization in Plants and Animals, Cell: Structure and Functions, Plant Physiology, Human Physiology.
Section 1: Physics: Electricity and Magnetism, Electromagnetic Induction, Alternating current, Electromagnetic waves, Optics, Modern Physics, Semiconductor Electronics, Communication Systems.
Chemistry: Solid State, Solutions, Electrochemistry, Chemical Kinetics, Surface Chemistry, General Principles and Processes of Isolation of Elements, p-Block Elements (Group 15 to 18), d- & f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, Amines, Biomolecules, Polymers, Chemistry in Everyday Life.
Section 3: Relations and Functions, Inverse Trigonometric Functions, Matrices and Determinants, Continuity and Differentiability, Application of Derivatives, Integrals, Application of Integrals, Differential Equations, Vector Algebra, Three Dimensional Geometry, Probability, Linear Programming.
Section 3: Reproduction, Genetics and Evolution, Biology in Human Welfare, Biotechnology, Ecology.
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Kindly mention which class NSO and IMO you are talking about.
Practising NCERT and your school books question is advisable. Download previous year questions, and some preparatory books ussually MCQs of science. When talking about IMO, since most of the portion is mathematics, practising many books as well as other competitions papers can be an option. There are several other exams such as NTSE, NSTSE, RMO(for 10th), and many more. It is important to remember that the topics will be the same as that of the school syllabus however the level will be upgraded, therefore, try practising tricky and more logical questions of that topic.
For NSO, science is involved learning NCERT will be extremely beneficial especially for biology and chemistry related questions.
Try solving Mental ability questions from legit books, and forget to solve sample papers and previous year papers. Download from here:
hope this helps
You can download the SOF NSO answer keys from the official website i.e.,
. If you can not find the link to download answer keys, here are the direct links to download the answer keys for each set of question paper:
Here is the table indicating cutoffs for all classes:
SOF N.S.O (2019-20) - 1ST LEVEL CUT-OFF TOP-5%
For more information regarding the same, kindly visit the following link:
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