CBSE Class 10 Science Syllabus 2022-23: Check Latest Course Structure, Exam Pattern, Deleted Topics & Assessment Details

CBSE Class 10 Science Syllabus for the new academic session 2022-23 is available here for download in PDF. Also, check deleted portion of the syllabus that will not be assessed in CBSE Board Exam 2023. 

CBSE Class 10 Science Syllabus 2022-23
CBSE Class 10 Science Syllabus 2022-23

CBSE Class 10 Science Syllabus 2022-23: The Central Board of Secondary Education (CBSE) released the annual syllabus for classes 9th to 12th for the current academic session, 2022-2023. We have provided below the CBSE syllabus of Class 10 Science. This is the reduced syllabus that will be considered for conducting CBSE Board Exam 2023. Students must go through this latest syllabus before they start the study of a new chapter as some of the topics have been removed from this new syllabus. In addition to this, they should prepare the experiments mentioned for the practical work. Check the complete syllabus below and download the same to refer to as and when required.

CBSE Class 10 Science Deleted Syllabus 2022-2023: Check Names of Deleted Chapters & Topics

CBSE Class 10 Science Course Structure (Annual Examination)

Theory Marks - 80

Unit No.




Chemical Substances-Nature and Behaviour



World of Living



Natural Phenomena



Effects of Current



Natural Resources






Internal assessment



Grand Total


CBSE Class 10 Syllabus for Academic Session 2022-23 (All Subjects)

Theme: Materials

Unit I: Chemical Substances - Nature and Behaviour

Chemical reactions: Chemical equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, endothermic exothermic reactions, oxidation and reduction.

Acids, bases and salts: Their definitions in terms of furnishing of H+ and OH ions, General properties, examples and uses, neutralization, concept of pH scale (Definition relating to logarithm not required), importance of pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris.

Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention.

Carbon compounds: Covalent bonding in carbon compounds. Versatile nature of carbon. Homologous series. Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents.

Theme: The World of the Living

Unit II: World of Living

Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants and animals.

Control and co-ordination in animals and plants: Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones.

Reproduction: Reproduction in animals and plants (asexual and sexual) reproductive health - need and methods of family planning. Safe sex vs HIV/AIDS. Child bearing and women’s health.

Heredity and Evolution: Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex determination: brief introduction: (topics excluded - evolution; evolution and classification and evolution should not be equated with progress).

Theme: Natural Phenomena

Unit III: Natural Phenomena

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature, principal axis, principal focus, focal length, mirror formula (Derivation not required),magnification.

Refraction; Laws of refraction, refractive index. Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula(Derivation not required); Magnification. Power of a lens.

Human eye: Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses.

Refraction of light through a prism, dispersion of light, scattering of light, applications in dailylife (excluding colour of the sun at sunrise and sunset).

Theme: How Things Work

Unit IV: Effects of Current

Electricity: Electric current, potential difference and electric current. Ohm’s law; Resistance, Resistivity, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors and its applications in daily life. Heating effect of electric current and its applications in daily life. Electric power, Interrelation between P, V, I and R.

Magnetic effects of current: Magnetic field, field lines, field due to a current carryingconductor, field due to current carrying coil or solenoid; Force on current carrying conductor, Fleming’s Left Hand Rule, Direct current. Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.

Theme: Natural Resources

Unit V: Natural Resources

Our environment: Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable substances.


Practical should be conducted alongside the concepts taught in theory classes

Download CBSE Class 10 Science Practical Syllabus 2022-23 (Complete List of Experiments)


  • Science-Text book for class X- NCERT Publication
  • Assessment of Practical Skills in Science- Class X- CBSE Publication
  • Laboratory Manual-Science-Class X, NCERT Publication
  • Exemplar Problems Class X – NCERT Publication

CBSE Class 10 Science Question Paper Design (2022-23)


Typology of Questions:

VSA including objective type questions, Assertion – Reasoning type questions; SA; LA; Source-based/ Case-based/ Passage-based/ Integrated assessment questions.  

An internal choice of approximately 33% would be provided.

Internal Assessment (20 Marks)  

(i) Periodic Assessment - 05 marks + 05 marks

(ii) Subject Enrichment (Practical Work) - 05 marks

(iii) Portfolio - 05 marks

Download the syllabus in PDF from the following link:

CBSE Class 10 Science Syllabus 2022-2023 - Download in PDF Here


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