Tamil Nadu 10th Science Deleted Syllabus 2026 Check Chapter Wise Syllabus 

Roumik Roy

Updated on - Jun 20, 2025

The Tamil Nadu 10th science Deleted Syllabus is a welcoming decision on the part of the Directorate of Government Examinations (DGE). The reduced syllabus will enhance conceptual clarity and it will also decrease the academic load to a great extent. Therefore, if you are going to sit for the Tamil Nadu 10th Exam 2026, start preparing according to the updated syllabus. 

The Tamil Nadu 10th Deleted Syllabus will help you to create an achievable study goal. When the syllabus is reduced, it helps to streamline the curriculum. Now, the focus has been shifted to application-based learning. Various redundant sections and subsections have been deleted. The subject of Science covers topics from Physics, Biology, and Chemistry. Hence, the reduced syllabus will provide you with an opportunity for better preparation. Your marks will also improve. Many concepts were repetitive and too advanced. The board authorities have made a wise decision to decrease the syllabus. Now, you can focus on strengthening the foundation in the subject of Science. 

This article speaks about all the important facts related to the Tamil Nadu 10th science Deleted Syllabus. Hence, if you are worried about the subject of Science, check out the forthcoming information. 

What is the Precise Tamil Nadu 10th Science Deleted Syllabus 2026?

If you are starting your preparation journey for the Boards, it is important to know the deleted syllabus. Otherwise, a lot of time will be wasted solving the questions that are no longer part of the curriculum. The Tamil Nadu 10th science Deleted Syllabus will help in deciding the right study plan. The chapter-wise deleted topics are discussed below - 

Chapters 

Deleted Topics 

Laws of Motion

Complex numerical problems involving two-body systems using Newton’s laws

Thermal Physics

Detailed explanation of heat engine and refrigerator

Acids, Bases, and Salts

Extensive preparation methods of acids and bases

Types of Chemical Reactions

Elaborate examples beyond the basic types of reactions

Heredity

Detailed explanation of gender determination in humans

Environmental Management

Lengthy sustainable development definitions and extra case studies

Carbon and its Compounds

Detailed overview of soap and detergent preparation; cleansing action

Also ReadTamil Nadu 10th Admit Card 

How to Obtain the Tamil Nadu 10th Science Syllabus 2026 PDF?

To excel in any exam, you must have the updated syllabus in hand. Hence, while preparing for the subject of Science, always use the newest syllabus. The table below shares the PDF for Tamil Nadu 10th Science Syllabus - 

Tamil Nadu 10th Science Syllabus 2026 – Download PDF

Also Read: Tamil Nadu 10th Sample Papers

What is the Exact Tamil Nadu 10th Science Question Paper Pattern 2026? 

The Tamil Nadu 10th Science theory paper will be of 75 marks. 25 marks are reserved for the practical assessment. The theory paper will have four sections (I, II, III, and IV). The question paper will contain MCQs, objective-type- questions, very short-answer-type questions, short-answer-type questions, and long-answer-type questions. Section I will have 12 questions of 1 mark each. In section II, you will have to answer 7 questions out of 10 (2 marks each). In section III, you must answer 7 questions out of 10 (4 marks each). The last section will have 3 questions of 7 marks each. At least a 35% score is needed to pass the theory Science paper. The upcoming table will help you to understand the exact question paper pattern for Tamil Nadu 10th Science - 

Section

Number of Questions

Marks Allotted 

I

12 

(MCQs and objective-type- questions)

12 x1 = 12 

II

7 out of 10 questions must be answered

(very short-answer-type questions)

7 x 2 = 14 

III

7 out of 10 questions must be answered

(short-answer-type questions)

7 x 4 = 28 

IV

3

(long-answer-type questions)

3 x 7 = 21 

Total 

 

75 

Also Read: Tamil Nadu 10th Previous Year Question Papers

What is the Most Accurate Tamil Nadu 10th Science Topics Weightage 2026? 

It is essential to know the topic-wise weightage for the Tamil Nadu 10th Science subject. Once you understand the exact weightage, sufficient time can be devoted to each topic. Here is the discussion of topic-wise weightage for Science - 

Topics

Weightage 

Biology – Origin, and evolution of life, control, and coordination, reproduction in plants and animals, the evolution of life, environment, management of natural resources, health, and diseases, etc. 

35%

Chemistry – Atomic structure and molecules, classification of elements, chemical bonding, chemical reactions and equations, carbon and its compounds, metals and non-metals, acids, bases, and salts, environmental chemistry, etc.

30%

Physics – Laws of motion, optics, thermal physics, electricity, acoustics, nuclear physics, etc. 

35%

The percentages highlighted in the above table are the near-about values based on the syllabus pattern. If you wish to obtain the most up-to-date knowledge about the syllabus and weightage pattern, visit the designated website of the board at dge.tn.gov.in. 

Also Read: Tamil Nadu 10th Exam Preparation Tips 

What are the Benefits of the Tamil Nadu 10th Science Deleted Syllabus 2026?

There are many crucial benefits of the Tamil Nadu 10th science Deleted Syllabus. To understand the advantages, you should go through the points mentioned below–

  • The Tamil Nadu 10th science Deleted Syllabus will help you in creating a simplified study plan. 

  • Your conceptual understanding will be strengthened. 

  • A lot of time will be saved. This time can be used for revision and even for the preparation of other subjects. 

  • A shortened syllabus reduces workload and increases the chance of scoring better grades. 

  • Academic anxiety will be reduced.

  • Teachers will also get some extra time to discuss important Science chapters in class. 

  • While attempting the questions from previous years’ Science papers, you can skip practicing the portion that belongs to the deleted syllabus. 

For more such updates about the Tamil Nadu 10th Exam, don’t forget to follow Getmyuni! 

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