IOQJS 2021 Syllabus

The IOQJS syllabus is now available on Vedantu and students can download it for their reference. Indian Olympiad Qualifier in Junior Science is the first level of the International Science Olympiad. The Indian Association of Physics Teachers and the Homi Bhabha Center for Science Education are the governing bodies for this exam. The IOQJS syllabus is determined by the Indian Association of Physics Teachers. Topics from Physics, Mathematics, Chemistry, and Biology covered till the 10th grade CBSE curriculum are covered in the IOQJS syllabus.

This is a secondary level exam, hence students are advised to study the NCERT textbooks for science subjects and mathematics, first, when they prepare for the IOQJS. This will help them to develop a conceptual understanding of the fundamental topics of Physics, Chemistry, Biology, and Mathematics. It is important for students to have a stronghold on the fundamental concepts of science subjects and maths since the level of difficulty of IOQJS is quite high and the types of questions asked are mostly unconventional as compared to the other exams.

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IOQJS Syllabus - Details

Students must be thorough with the important topics of Physics, Chemistry, Biology, and Mathematics covered in the CBSE syllabus of lower grades as well, for a better understanding of all concepts. Mostly, the concepts taught in Science and Mathematics till Class 8 have to be thoroughly understood. Also, a good knowledge of the below-given Maths topics covered in the NCERT curriculum till the 10th standard is required.

  • Number systems

  • Linear equations

  • Surface areas and volumes

  • Polynomials

  • Triangles

  • Quadratic equations

  • Circles

  • Statistics

  • Trigonometry

The IOQJS syllabus for science is discussed below in detail.

IOQJS Syllabus for Science



Matter- Nature & Behaviour

  • Matter Definition 

  • Volume, density, shape, and other characteristics of solids, liquids, & gases. 

  • Absorption of heat & change of state

  • Sublimation, Freezing, Melting, Evaporation, Condensation

  • Elements, Mixtures & Compounds

  • Homogenous & Heterogeneous mixtures

  • Separation of the components of a mixture

  • Solutions, & concentration of solutions

  • Colloids & suspensions

  • Atoms & molecules

  • Atomic & molecular masses

  • Law of constant proportions

  • Relationship of mole to mass of particles 

  • Mole concept

  • Protons, Neutrons, and Electrons

  • Valency

  • Isotopes

  • Chemical formula and symbols of common compounds 

  • Isobars

Chemical Substances

  • Types of chemical reactions

  • Balanced chemical equations 

  • Definition and general properties of acids, bases, and salts

  • Concept and importance of pH scale

  • Preparation & Uses of:

  1. Bleaching powder

  2. Plaster of Paris

  3. Sodium hydroxide

  4. Washing and baking soda

  • Metals & Non-metals  

  • Formation & properties of ionic compounds

  • Reactivity series

  • Corrosion and prevention of corrosion

  • Properties of ionic compounds

  • Metallurgical processes

  • Nature & nomenclature of Carbon compounds with functional groups

  • Homologous series

  • Saturated & unsaturated carbon compounds

  • Covalent bonding of carbon compounds, & their chemical properties

  • Soaps & detergents

  • Ethanol

  • Ethanoic Acid

  • Modern periodic table

  • Atomic number

  • Metallic & non-metallic properties

  • Valency

  • Early examples of periodic tables

Organization in the living world

  • Prokaryotic and Eukaryotic Cells

  • Structure & functions of cells

  • Cell organelles

  • Structure & functions of plant tissues and animal tissues

  • Biological Diversity

  • Health & Diseases

Life Processes

  • Control & coordination in plants and animals

  • Heredity & Evolution

  • Reproduction in animals and plants

Force, Motion & Work 

  • Force definition and types

  • Newton’s laws

  • Distance and displacement

  • Velocity, acceleration, related graphs

  • Uniform circular motion

  • Gravitation

  • Floatation

  • Sound

  • Work, Energy, & Power

Effects of Electric Current

  • Electric current

  • Potential difference

  • Ohm’s law

  • Resistance 

  • Series and parallel combination of resistors

  • Heating effect of electric current

  • Relation between P, R, I, and V.

  • Magnetic effects of electric current


  • Reflection

  • Refraction 

  • Refractive index

  • Magnification

  • Functioning of the lens in a human eye

  • Dispersion and scattering of light through a prism

Our Environment

  • Physical Resources

  • Biogeochemical cycles in nature

  • Natural Resources

Food Production

  • Use of fertilizers

  • Organic farming

  • Plant & animal breeding

  • Selection for quality improvement & management

  • Protection of crops from pests and diseases

The above-mentioned topics are to be covered from the NCERT textbooks and the other prescribed books. Also, a thorough practice of previous years’ question papers and sample papers will be highly beneficial for the preparation of IOQJS. Students can also refer to the official website of IAPT and HBCSE to get any updated information regarding the IOQJS syllabus.

FAQs (Frequently Asked Questions)

Q1. What are the Important Topics of Maths for IOQJS?

Ans: The important maths topics for IOQJS are number systems, surface areas and volumes, circles, triangles, linear equations, trigonometry, quadratic equations, statistics, and polynomials.

Q2. What Subjects are Covered in the IOQJS Syllabus?

Ans: The IOQJS syllabus comprises topics from Physics, Chemistry, Mathematics, and Biology. Students should be well versed with the science and maths topics covered till Class 10, to prepare for IOQJS.

Q3. Can I Use a Calculator in IOQJS?

Ans: Yes, you can use a calculator in IOQJS, only if the calculator abides by the norms prescribed by IAPT. There should be no graph mode, matrix mode, integration function, or any other special equation solver function available in the calculator.

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