Check New Syllabus Structure, Exam Pattern for Annual Assessment

CBSE Class 10 Science Syllabus 2022-23: While the Central Board of Secondary Education (CBSE) is conducting the board exams for the previous session, classes 10th and 12th have also started for the new session in CBSE schools across the country. The board has also released the rationalized syllabus for class 9th to 12th. We have provided below the CBSE Syllabus of Class 10 Science applicable for the academic session 2022-23. Students must go through this latest syllabus before starting to study the new chapter as some topics have been removed from this new syllabus. Check the complete syllabus given below and download it to check whenever required.

CBSE Class 10 Science Syllabus Structure (Annual Exam)

Theory Marks – 80

unit no.




Chemical Matter – Nature and Behavior



world of living



natural phenomena



effect of current



natural resources




internal assessment


Grand total


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

Theme: Content

Unit I: Chemical Matter – Nature and Behavior

Chemical Reaction: Chemical Equations, Balanced Chemical Equations, Implications of Balanced Chemical Equations, Types of Chemical Reactions: Combination, Decomposition, Displacement, Double Displacement, Precipitation, Endothermic Exothermic Reaction, Oxidation and Reduction.

Acids, Bases and Salts: H. their definitions in the context of presenting, and oh, Ion, general properties, examples and uses, neutralization, concept of pH scale (no need for definition related to logarithms), importance of pH in everyday life; Preparation and use of sodium hydroxide, bleaching powder, baking soda, washing soda and plaster of paris.

Metal and non-metal: properties of metals and non-metals; reactivity series; Formation and properties of ionic compounds; basic metallurgical processes; Rust and its prevention.

Carbon Compounds: Covalent bonds in carbon compounds. The versatile nature of carbon. homogeneous series. Nomenclature of carbon compounds containing functional groups (halogens, alcohols, ketones, aldehydes, alkanes and alkynes), difference between saturated hydrocarbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reactions). Ethanol and ethanoic acid (properties and uses only), soaps and detergents.

Theme: The World of the Living

Unit II: World of Living

the circle of life: ‘Creature’. Basic concepts of nutrition, respiration, transport and excretion in plants and animals.

Control and Coordination in Animals and Plants: Tropical movement in plants; Introduction of plant hormones; Control and coordination in animals: Nervous system; voluntary, involuntary and reflex actions; Chemical coordination: animal hormones.

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

Heredity and Evolution: inheritance; Mendel’s Contribution – Laws for the Inheritance of Traits: Sex Determination: Brief Introduction: (Except topics – Evolution, Evolution and Classification and Development should not be equated with progress).

Theme: Natural Phenomenon

Unit III: Natural Phenomenon

reflection of light by curved surfaces; Images formed by spherical mirror, center of curvature, principal axis, principal focus, focal length, mirror formula (derivative not necessary), magnification.

refraction; Laws of refraction, refractive index. refraction of light by a spherical lens; Image formed by a spherical lens; lens formula (derivation not necessary); magnification. power of a lens.

human eye: Functions of a lens in the human eye, defects of vision and their correction, applications of spherical mirrors and lenses.

Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life (except the color of the sun at sunrise and sunset).

Theme: How things work

Unit IV: Effect of Current

Lightning: 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. Thermal effect of electric current and its applications in daily life. Electric power, the interrelationship between P, V, I and R.

Magnetic Effects of Current: Magnetic field, field lines, field due to current carrying conductor, field due to current carrying coil or solenoid; Force on a current carrying conductor, Fleming’s left hand rule, direct current. Alternating Current: Frequency of AC. Advantages of AC over DC. Domestic electrical circuit.

Theme: Natural Resources


our environment: Ecosystem, environmental problems, ozone depletion, waste generation and their solutions. Biodegradable and non-biodegradable substances.


Concepts taught in theory classes as well as practical should be done

list of experiments

1. A. Determination of pH of the following samples using pH paper/universal indicator: (Unit-I)

(i) dilute hydrochloric acid

(ii) dilute NaOH solution

(iii) dilute ethanoic acid solution

(iv) Lemon juice

(v) water

(vi) dilute hydrogen carbonate solution

B. Study of the properties of acids and bases (HCl and NaOH) on the basis of their reaction: (Unit-I)

a) Litmus solution (blue/red)

b) zinc metal

c) solid sodium carbonate

2. To carry out and observe the following reactions and classify them into: (Unit-I)

A. Combination reaction

B. decomposition reaction

C. displacement reaction

d double displacement reaction

(i) Action of water on slaked lime

(ii) action of heat on ferrous sulphate crystals

(iii) An iron nail placed in a solution of copper sulphate

(iv) Reaction between sodium sulphate and barium chloride solutions

3. To observe the action of metals Zn, Fe, Cu and Al on the following salt solutions: (Unit-I)

i) ZnSO4(aq)

ii) FeSO4(aq)

iii) CuSO4(aq)

iv) Ali2(therefore4,3(aq)

Arrangement of Zn, Fe, Cu and Al (metals) in decreasing order of reaction based on above result.

4. To study the dependence of the potential difference (V) across a resistor on the current (I) passing through it and to find its resistance. Also draw a graph between V and I. (Unit-IV)

5. Determination of equivalent resistance of two resistors when connected in series and parallel. (Unit-IV)

6. Preparing a temporary mount of leaf rind to show stomata. (Unit-II)

7. Show experimentally that carbon dioxide is released during respiration. (Unit-II)

8. Study of the following properties of acetic acid (ethanoic acid): (Unit-I)

i) smell

ii) Solubility in water

iii) Effect on Litmus

iv) Reaction with sodium hydrogen carbonate

9. Study of comparative cleaning ability of soap sample in soft and hard water. (Unit-I)

10. Determination of Focus Distance: (Unit-III)

i) concave mirror

ii) A convex lens by obtaining the image of a distant object.

11. To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of output and interpret the result. (Unit – III)

12. To study (a) binary fission in amoeba, and (b) budding in yeast and hydra with the help of prepared slides. (Unit-II)

13. Tracing the path of light rays through a glass prism. (Unit-III)

14. Identification of different parts of the embryo of a dicot seed (pea, gram or red moong).

Prescribed Books:

  • Science Textbook for Class X – NCERT Publications
  • Assessment of Practical Skills in Science – Class X – CBSE Publications
  • Laboratory Manual-Science-Class X, NCERT Publications
  • Example Problems Class X – NCERT Publications


Typology of questions:

VSA with objective type questions, Assertion – Reasoning type questions; SA; la; Source-based / Case-based / Passage-based / Integrated Assessment Questions.

An internal choice of around 33% will be provided.

Internal Assessment (20 Marks)

(i) Periodic Assessment – 05 Marks + 05 Marks

(ii) Subject Enhancement (Practical Work) – 05 Marks

(iii) Portfolio – 05 marks

Download the Syllabus in PDF from the link given below:

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