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CBSE Class 10 Science Syllabus 2024-25, Download PDF

CBSE Class 10 Science syllabus 2024-25 has been officially posted on the board’s official website, cbse.gov.in. Science helps children develop well-defined talents in the cognitive, emotional, and psychomotor domains. The Class 10 Science Syllabus 2025 covers all of the major topics, as well as new additions and eliminated content, to ensure that you have the most up-to-date information.  Students can download CBSE Class 10 Science syllabus 2025 PDF, given on this page to learn and prepare for the exams in a systematic way.

CBSE Class 10 Science Syllabus 2024-25

Students should go through the CBSE Class 10 Science Syllabus to learn about units, topics, and marks allotted for each unit for better exam preparation.The syllabus covers seven basic themes: Food, Materials, The World of Living, How Things Work, Moving Things, People and Ideas, Natural Phenomenon, and Natural Resources.

The science Class 10 Syllabus also includes details about practicals, assignments, and projects so that students can understand the concepts they are learning effectively. CBSE syllabus for Class 10 Science is designed in such a way that it helps students to plan their study plan according to the board exams. Downloading the syllabus will help you plan your studies more effectively, grasp the updated assessment methods, and perform well in your exams

Class 10 Science Syllabus 2025 Marks Breakdown

The CBSE syllabus for Class 10 Science is created in such a way that students can arrange their study schedules based on the board exams. Students should review the CBSE Class 10 Science Syllabus to learn about the units, subjects, and marks assigned to each unit for better exam preparation

CBSE Class 10 Science Syllabus: Unit-wise Weightage
S. No. Unit Marks
1 I. Chemical Substances-Nature and Behaviour 25
2 II. World of Living 25
3 III. Natural Phenomena 12
4 IV. Effects of Current 13
5 V. Natural Resources 5
Total 80

Science Class 10 Syllabus 2024-25 Unit Wise

There are a total of five units included in the CBSE Class 10 Science syllabus 2025. All the units are crucial and carry good Weightage in the board exam. As each unit includes several concepts, students should carefully and meticulously complete all the units.

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, Bleachingpowder, 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

Theme: The World of the Living

Unit II: World of Living

Life processes: ‘Living Being’. The 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.
  • Functioning of a lens in the human eye, defects of vision and their corrections, and applications of spherical mirrors and lenses.
  • Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life (excluding colour of the sun at sunrise and sunset).

Theme: How Things Work

Unit IV: Effects of Current

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 carrying conductor, 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.

Note for the Teachers:
1. The chapter Management of Natural Resources (NCERT Chapter 16) will not be assessed in the year-end examination. However, learners may be assigned to read this chapter and encouraged to prepare a brief write up to any concept of this chapter in their Portfolio. This may be for Internal Assessment and credit may be given Periodic Assessment/Portfolio).

2. The NCERT text books present information in boxes across the book. These help students to get conceptual clarity. However, the information in these boxes would not be assessed in the year-end examination.

CBSE Class 10 Science Syllabus 2025 for Practicals

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

1. A. Finding the pH of the following samples by 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. Studying the properties of acids and bases (HCl & NaOH) on the basis of their reaction with:    (Unit-I)
a) Litmus solution (Blue/Red)
b) Zinc metal
c) Solid sodium carbonate

2. Performing and observing the following reactions and classifying them into: (Unit-I)
A. Combination reaction
B. Decomposition reaction
C. Displacement reaction
D. Double displacement reaction
(i) Action of water on quicklime
(ii) Action of heat on ferrous sulphate crystals
(iii) Iron nails kept in copper sulphate solution
(iv) Reaction between sodium sulphate and barium chloride solutions
3. Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions: (Unit-I)
i) ZnSO4(aq)
ii) FeSO4(aq)
iii) CuSO4(aq)
iv) Al2 (SO4)3(aq)
Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the above result.

4. Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance. Also plotting a graph between V and I. (Unit-IV)

5. Determination of the equivalent resistance of two resistors when connected in series and parallel. Unit-IV
6. Preparing a temporary mount of a leaf peel to show stomata. Unit- II
7. Experimentally show that carbon dioxide is given out during respiration. Unit-II
8. Study of the following properties of acetic acid (ethanoic acid): Unit- I
i) Odour
ii) solubility in water
iii) effect on litmus
iv) reaction with Sodium Hydrogen Carbonate

9. Study of the comparative cleaning capacity of a sample of soap in soft and hard water. (Unit- I)
10. Determination of the focal length of:   (Unit-III)
i) Concave mirror
ii) Convex lens by obtaining the image of a distant object.
11. 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. (Unit – III)
12. Studying (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 the rays of light through a glass prism. (Unit-III)
14. Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean). (Unit-II)

CBSE Class 10 Science Syllabus 2024-25 PDF Download

The board has released the Science Class 10 Syllabus for the 2024-25 Session along with all major subjects in PDF format. For future reference, students can download the CBSE Class 10 Science Syllabus 2024-25 pdf by visiting the official website of CBSE or using the direct link shared here under.

CBSE Class 10 Science Syllabus 2024-25

Prescribed Books for Class 10 Science

Here is a list of prescribed books that will benefit recovering all the topics included in the CBSE Class 10 Science Syllabus 2025.

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

Class 10

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Soumyadeep specializes in content creation for board exams, catering to the demands of CBSE, ICSE, and other state boards students. He has two years of experience in the education industry. He has a graduate degree in Zoology Honours, he delivers content across several domains, including CUET (UG and PG), NEET, JEE, and universities. 


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