CBSE Class 10 Science Syllabus for 2022-23

On April 21st, 2022, CBSE released a reduced syllabus for classes 9 to 12 of the 2022-23 academic session.

After so many changes in the last 2 to 3 years, CBSE has finalised a reduced syllabus for Class 10 teachers and students to follow. However, the term-based examination pattern will NOT BE FOLLOWED in 2022-23.

We were prompt about the syllabus release and have updated the changes in all the subjects for you. Here, you can find:

  • PDF download links to the latest reduced Class 10 Science Syllabus for 2022-23 academic session; and
  • simple analysis of all the deleted topics/ chapters to be followed this year.

2022-23 Reduced Syllabus

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We have also provided the syllabus for the 2020-21 session that was previously restored so that you can compare the deleted and added topics.

2020-21 Reduced Syllabus

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Topics Added (✔️) | Topics Deleted ()
Chapter 1 - Chemical Reactions and Equations
Chapter 2 - Acids, Bases and Salts
Chapter 3 - Metals and Non-metals
✔️ Basic metallurgical processes
✔️ Corrosion and its prevention.
Chapter 4 - Carbon and its Compounds
✔️ Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes)
✔️ Difference between saturated hydrocarbons 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
❌ Chapter 5 - Periodic Classification of Elements
Chapter 6 - Life Processes
Chapter 7 - Control and Coordination in Animals and Plants
(Complete Chapter Added)
✔️ Tropic movements in plants; Introduction of plant hormones
✔️ Control and coordination in animals: Nervous system; Voluntary, involuntary and reflex action
✔️ Chemical coordination: animal hormones.
Chapter 8 - How do Organisms Reproduce?
Chapter 9 - Heredity and Evolution
Evolution; evolution and classification and evolution should not be equated with progress.
Chapter 10 - Light – Reflection and Refraction
Chapter 11 - Human Eye and Colourful World
✔️ Functioning of a lens in the human eye
✔️ Defects of vision and their corrections
✔️ Applications of spherical mirrors and lenses
Chapter 12 - Electricity
✔️ Electric current, potential difference and electric current.
Chapter 13 - Magnetic Effects of Electric Current
Electric Motor
Electromagnetic induction
Induced potential difference
Induced current
Fleming’s Right Hand Rule
Electric Generator
✔️ Direct current
✔️ Alternating current: frequency of AC
✔️ Advantage of AC over DC
✔️ Domestic electric circuits.
Chapter 14 - Sources of Energy
Chapter 15 - Our Environment
Chapter 16 - Management of Natural Resources
May only be used for Internal Assessment (Portfolio)
Units Unit Name Marks
I Chemical Substances - Nature and Behaviour 25
II World of Living 25
III Natural Phenomena 12
IV Effects of Current 13
V Natural Resources 05
Periodic Assessment (10) + Student Enrichment (Practical Work) (05) + Portfolio (05)


Practical should be conducted alongside the concepts taught in theory classes.

List of Experiments

  1. A. (Unit I) Finding the pH of the following samples by using pH paper/universal indicator:
  • Dilute Hydrochloric Acid
  • Dilute NaOH solution
  • Dilute Ethanoic Acid solution
  • Lemon juice
  • Water
  • Dilute Hydrogen Carbonate solution

B. (Unit I Chapter 2) Studying the properties of acids and bases (HCl & NaOH) on the basis of their reaction with:

  • Litmus solution (Blue/Red)
  • Zinc metal
  • Solid sodium carbonate
  1. (Unit I Chapter 1) Performing and observing the following reactions and classifying them into:

A. Combination reaction

B. Decomposition reaction

C. Displacement reaction

D. Double displacement reaction

  • Action of water on quicklime
  • Action of heat on ferrous sulphate crystals
  • Iron nails kept in copper sulphate solution
  • Reaction between sodium sulphate and barium chloride solutions
  1. A. (Unit I Chapter 3) Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions:
  • ZnSO4(aq)
  • FeSO4(aq)
  • CuSO4(aq)
  • Al2(SO4)3(aq)

B. Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the above result.

  1. (Unit IV Chapter 12) Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determining its resistance. Also plotting a graph between V and I.
  2. <green> ✔️ <green> (Unit IV) Determination of the equivalent resistance of two resistors when connected in series and parallel.
  3. <green> ✔️ <green> (Unit II) Preparing a temporary mount of a leaf peel to show stomata.
  4. (Unit II Chapter 6) Experimentally show that carbon dioxide is given out during respiration.
  5. <green> ✔️ <green> (Unit I) Study of the following properties of acetic acid (ethanoic acid):
  • Odour
  • Solubility in water
  • Effect on litmus
  • Reaction with Sodium Hydrogen Carbonate
  1. <green> ✔️ <green> (Unit I) Study of the comparative cleaning capacity of a sample of soap in soft and hard water.
  2. (Unit III Chapter 10) Determination of the focal length of:
  • Concave mirror; and
  • Convex lens; by obtaining the image of a distant object.
  1. (Unit III Chapter 10) Tracing 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 emergence and interpret the result.
  2. (Unit II Chapter 8) Studying (a) binary fission in Amoeba, and (b) budding in yeast and Hydra with the help of prepared slides.
  3. (Unit III Chapter 11) Tracing the path of the rays of light through a glass prism.
  4. <green> ✔️ <green> (Unit II) Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean). (Added in the 2020-21 reduced syllabus)
  5. <red> ❌ <red> (Unit III) Finding the image distance for varying object distances in case of a convex lens and drawing corresponding ray diagrams to show the nature of the image formed.
S. No. Typology of Questions Total %
1 Demonstrate Knowledge and Understanding: State, name, list, identify, define, suggest, describe, outline, summarise, etc. 46
2 Application of Knowledge/Concepts: Calculate, illustrate, show, adapt, explain, distinguish, etc. 22
3 Formulate, Analyse, Evaluate and Create: Interpret, analyse, compare, contrast, examine, evaluate, discuss, construct, etc. 32

  • 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.

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