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The Tamil Nadu 10th Science exam pattern 2025–2026 covers the weighting of the various syllabus topics; the types of questions that will be asked in the board exam; the marks assigned to each question and section of the question paper; the evaluation criteria for each section of the question paper; and the policy regarding negative marking during the exam. You can determine which chapter or unit requires the most attention and the kinds of questions that will be asked in the Tamil Nadu Class 10th Exam by using the exam pattern provided on this website. The Tamil Nadu board developed the exam pattern to help students evaluate their knowledge and abilities.
To prepare for the 2026 board exams, it is advised to study the Tamil Nadu Class 10th exam pattern. Knowing the format of the RBSE 10th Science exam for 2025–2026 will help you focus and study more effectively. Both descriptive and objective questions are included in the Tamil Nadu 10th grade science exam. Furthermore, a wrong response to a question does not result in a failing grade. As a result, the exam pattern will help you achieve a higher score on the board exam.
The Tamil Nadu 10th Science exam pattern is available for you on the Tamil Nadu board's official website, https://www.tamilnadustateboard.org.in. For those preparing for the 10th board exam in 2025–2026, the Tamil Nadu 10th Science exam pattern is as follows.
Also read: Tamil Nadu 10th syllabus 2026
The Tamil Nadu 10th Science exam consists of a 75-mark theory section and a 25-mark practical section. The Science theory paper is divided into four sections. There are twelve multiple-choice (MCQ) questions in Part I. Each of these questions is worth one mark out of a possible twelve. You will receive a total of fourteen marks if you correctly answer seven of the ten very short answer questions in Part II, each of which is worth two marks. Seven of the ten short answer questions in Part III are worth four of the twenty-eight possible points. You will receive a total of 21 marks for responding to the three long answer questions in Part IV, each of which is worth seven marks. Three hours are needed to finish the exam. The Tamil Nadu 10th Science Exam Pattern 2026 is detailed in the table below:
| Part | Number of questions | Marks Allotted |
|---|---|---|
| I | 12 | 1 mark for each question |
| II | 7 out of 10 | 2 marks for each question |
| III | 7 out of 10 | 4 marks for each question |
| IV | 3 | 7 marks for each question |
Also read: Tamil Nadu 10th Admit Card 2026
You can better understand how you need to study for each chapter by looking at the marking scheme for the different chapters of the Science curriculum. The Tamil Nadu 10th Science Marking Scheme 2026 is given in the following table:
| Sections | Type of Questions | Number of Questions | Marks Allotted |
|---|---|---|---|
| Laws of Motion | Varies | Varies | 26 |
| Optics | Varies | Varies | |
| Thermal Physics | Varies | Varies | |
| Electricity | Varies | Varies | |
| Acoustics | Varies | Varies | |
| Nuclear Physics | Varies | Varies | |
| Atoms and Molecules | Varies | Varies | |
| Periodic Classification of Elements | Varies | Varies | 24 |
| Solutions | Varies | Varies | |
| Types of Chemical Reactions | Varies | Varies | |
| Carbon and its Compounds | Varies | Varies | |
| Plant Anatomy and Plant Physiology | Varies | Varies | 25 |
| Structural Organization of Animals | Varies | Varies | |
| Transportation in Plants and Circulation in Animals | Varies | Varies | |
| Nervous System | Varies | Varies | |
| Plant and Animal Hormones | Varies | Varies | |
| Reproduction in Plants and Animals | Varies | Varies | |
| Heredity | Varies | Varies | |
| Origin and Evolution of Life | Varies | Varies | |
| Breeding and Biotechnology | Varies | Varies | |
| Health and Diseases | Varies | Varies | |
| Environmental Management | Varies | Varies | |
| Visual Communication | Varies | Varies | |
| Total | 29 | 75 |
Also read: Tamil Nadu 10th Sample Papers 2026
Each unit in the 10th grade science curriculum in Tamil Nadu is given a different weight. For academic success, it is imperative to examine the unit-wise marking scheme for the 10th grade science curriculum in Tamil Nadu. The Tamil Nadu 10th Science unit-wise marking scheme 2026 is given in the table below:
| Units | Weightage % | Marks Allotted |
|---|---|---|
| Chemistry | 32% | 24 |
| Physics | 35% | 26 |
| Biology | 33% | 25 |
Also read: Tamil Nadu 10th Science Deleted syllabus 2026
You need to know the Tamil Nadu 10th Science exam pattern for 2026 in order to organize your studies and get ready for the board exams. The following strategies can help you get ready for the Tamil Nadu 10th Science exam in 2026:
By regularly checking this page before the 10th board exams, you can obtain all the information you require regarding the Tamil Nadu 10th Science Exam Pattern for 2025–2026.
Q: What are the maximum marks for the Tamil Nadu 10th Science theory exam?
Q: What is the maximum time allotted to the Tamil Nadu 10th Science exam?
Q: How many sections are there in the Tamil Nadu 10th Science question paper?
Q: Which unit in Tamil Nadu 10th Science has the maximum marks?
Q: How many questions are there in the Tamil Nadu 10th Science question paper?
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