CBSE Class 10 Science Syllabus – Download PDF For 2026

Internal Assessment (20 Marks) For Class 10 Science Exam 2026

– Periodic Assessment – 05 marks + 05 marks
– Subject Enrichment (Practical Work) – 05 marks
– Portfolio – 05 marks

CBSE Class 10 Science Syllabus 2025 Overview

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CBSE Class 10 Science Subject Wise Syllabus 2025

CBSE Class 10 Science Practical Assessment Scheme

Out of 100 marks, 20 marks consist of Practical assessment. Here’s the bifurcation of practical assessment of Class 10th.

CBSE Class 10 Science Practical Syllabus

Class 10 Science Practical Assessment consists of the experiments to write lab experiments. Out of 20 marks, the schools are conducting experiments and maintaining a lab manual,

Experiments List for Class 10 Science Practicals

1. Finding the pH of the following samples by using pH paper/universal indicator: (not included for this academic year) 

(i) Dilute hydrochloric acid

(ii) Dilute NaOH solution

(iii) Dilute ethanoic acid solution

(iv) Lemon juice

(v) Water

(vi) Dilute hydrogen carbonate solution

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

a) Litmus solution (Blue/red)

b) Zinc metal

c) Solid sodium carbonate

Performing and observing the following reactions and classify them into:

1. Combination reaction
2. Decomposition reaction
3. Displacement reaction
4. 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:

i) ZnSO4(aq)

ii) FeSO4(aq)

iii) CuSO4(aq)

iv) Al2 (SO4)3(aq)

Arranging Zn, Fe, Cu and Al (metals) in 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 determining its resistance. Also, plotting a graph between V and I.

5. Determination of the equivalent resistance of two resistors when connected in series and parallel.

6. Preparing a temporary mount of a leaf peel to show stomata.

7. Experimentally show that carbon dioxide is given out during respiration.

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

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.

10. Determination of the focal length of:

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, and angle of emergence and interpret the result.

12. Studying (a) binary fission in Amoeba and (b) budding in yeast and Hydra with the help of prepared slides.

13. Tracing the path of the rays of light through a glass prism.

14. Identification of the different parts of an embryo of a dicot seed (Peas, gram or red kidney bean).

Lab Manuals Topics

• Experimentally Show That Carbon Dioxide Is Given out During Respiration.
• Identification of the Different Parts of an Embryo of a Dicot Seed.
• Preparing a Temporary Mount of a Leaf Peel to Show Stomata.
• Studying Binary Fission in Amoeba and Budding in Yeast with the Help of Prepared Slides.
• Ph of Samples.
• Properties of Acetic Acid Experiment.
• Properties of Acids and Base.
• Reactivity Series Experiment.
• Study the Comparative Cleaning Capacity of a Sample of Soap in Soft and Hard Water.
• Types of Reactions Experiment.
• Dependence of Potential Difference Across a Resistor on Current with Graph.
• Determination of Focal Length of Concave Mirror and Convex Lens.
• To Determine the Equivalent Resistance of Resistors When Connected in Series and in Parallel.
• To Find Image Distance for Varying Object Distances of a Convex Lens with Ray Diagrams.
• Tracing Path of a Ray of Light Passing Through a Glass Slab.
• Tracing the Path of the Rays of Light Through a Glass Prism.

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