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CBSE Class 10th Practical and Viva Preparation Tips

You have probably started revising your syllabus, as the board examinations are coming up soon. But are you also prepared enough for the practical exams? Many of us give little to no attention when teachers demonstrate processes using practical experiments/methods. However, in order to more effectively comprehend the concepts and memorise the principles in the long haul, it is essential to be diligent with practical information as well. You can get high scores, even full marks, in your practical examinations if you focus and do your assignments perfectly. So, why not do well in practical’s and watch your grades soar in the Class 10 CBSE board exam?

Preparation Tips for the Class 10 CBSE Board Practical Exam

Here are certain tips to help you score good marks in your practical exams:Understanding the ConceptStudents for the CBSE Class 10 practical examinations must work hard to understand the experiment's premise completely. Once you've mastered the theory's foundation, you'll be prepared to understand the principle and explain it clearly and easily. This also helps you with giving accurate and confident answers to the viva voce questions.


Regardless of the topic you are given, just remain composed and confident while giving it your best effort. Make sure to keep records of every step that you follow so that you can answer questions that are asked by the examiner during the Viva. The majority of the time, the questions that the examiner asks are related to the topic of the experiment that you were assigned. So ensure that you've done some studying on that.


Students for the CBSE Class 10 board fall short of practising writing down their answers and instead concentrate on memorising and learning. Both the practical and theoretical examinations are timed. Practice writing down the entire process, observation, and making the diagram in the allotted time. Without practice, you may be unable to finish the assignment within the given time limit, resulting in a mark deduction.

Getting Proper Rest

Our thinking capabilities function best when we are properly rested. It is essential that you perform proficiently in the CBSE Class 10 practical exams, and worrying about it or not falling asleep early would not help you score higher. Not being properly rested and relaxed can cause you to make simple mistakes and lose points. As a result, students must get enough sleep, eat well, and keep up their confidence.

Class 10 CBSE Board Viva Voce

The viva is an important element of the exam that can fetch you high scores. Viva questions are an important element of the examination procedure since they allow teachers to assess students’ command and understanding of a topic. Preparing for Class 10 viva questions allows students to focus on chapters that call for more planning and time.

Tips for Good Viva ScoreThe following tips can help you score better marks in your viva sessions.

  1. Prepare for at least two or more chapters, considering examiners will most likely give you a choice of topics to begin the viva with.
  2. Your viva will most definitely begin with the practicals or project work that you finished. Prepare the topics and subtopics of your project thoroughly. Also, ensure that you maintain your manual so that you can properly revise all that you learned in your practicals.
  3. Maintain eye contact with the examiner, pay attention closely to the questions, and respond strongly and calmly without hurrying. Try to maintain a positive attitude to reduce nervousness before and during the examination. Most importantly, you must remember it is okay to ask for clarifications and question the examiner.
  4. Make sure you have reviewed the most significant topics before sitting for the viva.
  5. It is a good idea to have group discussions with your friends before the viva examinations.

Viva Guidelines by CBSE Board

The following guidelines are given by the Central Board of Secondary Education (CBSE) for conducting the practical and viva examinations for class 10th students.

  1. The school should prepare a plan according to the number of students enrolled in particular subjects. Inform the students timely to avoid any absentees on the day of the practical examination.
  2. All students should be notified that they have to appear for the practical exam according to the given timetable. If any student is absent, the practical exam can be rescheduled on the decided dates. No special requests would be accepted beyond the reschedule by the board.
  3. The school should contact the regional office to get the external examiner(s) and observer.
  4. The practical examination should be completed in time. The marks should be uploaded the same day, and the copies should be dispatched to the regional office the same day.

Sample Questions for Class 10 CBSE Board Practical Examination

Here are certain questions that can be asked in the CBSE board class 10 practical exams.

Physics Class 10 CBSE Board Practical Sample Questions

Q 1. What is Newton's second law of motion?

Ans: According to Newton’s second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Q 2. What is the difference between a conductor and an insulator?

Ans: A conductor allows electricity to flow through it. An insulator is a material that does not allow electricity to pass through it.

Q 3. What are the sources of error in the experiment you performed to determine the focal length of a convex mirror?

Ans: The two main sources of error are:

1. The uprights are not vertically aligned.

2. The pole of the mirror, the point of the object needle, and the optical centre are not in a straight line.

Chemistry Class 10 CBSE Board Practical Sample Questions

Q 1. How do you differentiate between an acid and a base using pH values?

Ans: The pH values range from 0 to 14. An acid has a pH value below 7. A base has a pH value above 7.

Q 2. What do you observe when you add a few drops of acetic acid to a test tube containing sodium hydrogen carbonate?

Ans: Due to the evolution of CO2 gas, we can observe a brisk effervescence.

Q 3. Why does calcium float over water?

Ans: The reaction between calcium and water produces hydrogen gas. The heat produced during this reaction is not sufficient for hydrogen to catch fire. Therefore, hydrogen gas bubbles generated during the reaction stick to the surface of the calcium metal, making it lighter. Hence, calcium floats over water.

Biology Class 10 CBSE Board Practical Sample Questions

Q 1. Why are stomata absent in the roots?

Ans: The stomata are not present in the roots because there is little to no gas exchange in the roots of a plant.

Q 2. How will one identify a monocot leaf and a dicot leaf on the basis of stomata?

Ans: In monocot leaves, the guard cells have a dumbbell shape, whereas in dicot leaves, they have a kidney or bean shape.

Q 3. Why do we use germinating seeds but not the green leaves of a plant to demonstrate respiration?

Ans: Since germinating seeds are growing quickly, they actively breathe. Green leaves, on the other hand, will undertake photosynthesis in addition to respiration. As a result, it will use CO2 created during respiration, and the presence of CO2 may not be accurately detected.

Get ready for your practical viva with more practice questions.

Click the link below.

CBSE class 10 Physics Viva Questions and Solutions 2023-2024

CBSE class 10 Chemistry Viva Questions and Solutions 2023-2024

CBSE class 10 Biology Viva Questions and Solutions 2023-2024


Prepare Well for Your Class 10 CBSE Board Practical Exams

Practicals are a fun way of understanding the experiments performed by the scientists that you studied in theory lectures. Practical exams are an important part of the board examination. These exams are an easy way to score good marks in your board exams. To get good marks, you just need to have a good understanding of your practicals and follow the above tips.

TopperLearning is one of the leading edtech platforms that can provide you with the perfect study material to prepare you for practical exams. We have video lessons, NCERT solutions, sample papers, and more that could easily help you score great marks. Prepare well! Be confident! All the best! 


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