CBSE Class 10 Science Practical Exam 2026: Important Questions & List of Experiments

CBSE Class 10 Science Practical Exam: List of Experiments & Questions

Candidates can check out the following list of experiments mentioned in the CBSE syllabus for Class 10 Science subject. They must go through the experiments and be ready with the equipment and important things required for the CBSE practical examination. Students are also required to keep the assignment records ready for the evaluation and be prepared for the viva-voce. Check out the list of experiments below.

Experiment - 1

A. Finding the pH of the following samples by using pH paper/universal indicator:

1. Dilute Hydrochloric Acid

2. Dilute NaOH solution

3. Dilute Ethanoic Acid solution

4. Lemon juice

5. Water

6. Dilute Hydrogen Carbonate solution

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

1. Litmus solution (Blue/Red)

2. Zinc metal

3. Solid sodium carbonate

Experiment - 2

Performing and observing the following reactions and classifying them into:

1. Combination reaction

2. Decomposition reaction

3. Displacement reaction

4. 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

Experiment - 3

Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions:

1. ZnSO4 (aq)

2. FeSO4 (aq)

3. CuSO4 (aq)

4. Al2 (SO4)3 (aq)

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

Experiment - 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.

Experiment - 5

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

Experiment - 6

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

Experiment - 7

Experimentally show that carbon dioxide is given out during respiration.

Experiment - 8

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

1. Odour

2. solubility in water

3. effect on litmus

4. reaction with Sodium Hydrogen Carbonate

Experiment - 9

Study of the comparative cleaning capacity of a sample of soap in soft and hard water.

Experiment - 10

Determination of the focal length of:

1. Concave mirror

2. A convex lens by obtain the image of a distant object.

Experiment - 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.

Experiment - 12

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

Experiment - 13

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

Experiment - 14

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

CBSE Class 10 Science Practical Viva Important Questions

Students are required to prepare for the viva for the CBSE 10th Science practical exam. After the practicals, candidates must attend the viva-voce. External examiners will ask the viva questions. They will also check the project, records, and evaluate the experiments. Check out some of the important questions for the Science practical viva.

Q1) Defined the resistance of a conductor.

Q2) State the laws of reflection of light.

Q3) Define the principal focus of a concave mirror and a convex lens.

Q4) Define the pH of a solution.

Q5) What are the general properties of acids and bases?

Q6) What are the different types of cell division?

Q7) How can you dissect and identify the different parts of a dicot seed?

Q8) What are stomata and the function of stomata?

Q9) How can you prepare a temporary mount of a leaf peel?

Q10) What are the different types of chemical reactions?

Q11) What factors affect the resistance of a conductor?