CBSE 10th Science Deleted Syllabus 2026: Check Chapter Wise Deleted Syllabus
Table of Contents
The CBSE (Central Board of Secondary Education) board has made considerable changes to the 10th grade Science curriculum.In an effort to reduce academic stress, the CBSE 10th Science syllabus has undergone multiple adjustments since the COVID-19 pandemic. To help you concentrate on the key scientific concepts and laws for the CBSE Class 10 Exam 2026, some difficult subjects have been eliminated. The topics that were dropped were either unnecessary or didn't really affect you.
To alleviate the intellectual burden on you and other students, 30% of the topics were removed. To properly prepare for the impending board exams, it is advised that you go over the CBSE Class 10 Deleted Syllabus 2026. If some of the curriculum were eliminated, it would be easier for you to study every topic before the board exams. One can locate the withdrawn curriculum on the official CBSE board website at cbse.gov.in. The CBSE 10th Science Deleted Syllabus 2026 is available in this article for those of you who will be taking your 10th boards in the academic year 2025–2026.
Also Read: CBSE Class 10 Syllabus 2026
CBSE 10th Science Deleted Syllabus 2026 - Chapter Wise
The CBSE board's official website offers the chapter-by-chapter deleted Science syllabus. In some of the chapters in the curriculum, some topics that were not particularly important for you have been left out. The following table provides the chapter-by-chapter CBSE 10th Science Deleted Syllabus 2026:
| Chapters | Deleted Topics |
|---|---|
| Chemical reactions | No topics deleted |
| Acids, bases and salts | No topics deleted |
| Metals and nonmetals | No topics deleted |
| Carbon compounds | No topics deleted |
| Periodic Classification | Full chapter deleted |
| Life processes | No topics deleted |
| Control and co-ordination in animals and plants | No topics deleted |
| Reproduction | No topics deleted |
| Heredity and Evolution (Chapter name changed to Heredity) |
Basic concepts of evolution Evolution Evolution and Classification Evolution should not be equated with progress |
| Natural Phenomena | No topics deleted |
| The Human Eye and the Colorful World | Application of scattering in explaining color change of the sun at sunrise and sunset |
| Electricity | Box item: Flow of charges inside a wire |
| Magnetic effects of current |
Electric Motor Electromagnetic Induction Induced Potential Difference Induced Current Fleming's Right Hand Rule Electric Generator |
| Sources of Energy | Full chapter deleted |
| Our Environment | No topics deleted |
| Sustainable Management of Natural Resources | Full chapter deleted |
CBSE 10th Science Syllabus 2026 PDF
After removing a few topics, the final PDF of the Science syllabus is now available on the official website of the CBSE board. Every topic that is significant to you is included in the updated syllabus. The link for the CBSE 10th Science Syllabus PDF is given below:
| CBSE 10th Science Syllabus 2026 PDF |
Also read: CBSE Class 10 sample papers
CBSE 10th Science Question Paper Pattern 2026
It is necessary for you to know the question paper pattern, to prepare for the Science board exam.The highest possible score on the Science question paper is 80.It is divided into five sections. Section A is composed of 20-mark multiple-choice questions (MCQ) and assertion-reason questions.Very short answer questions totaling 12 marks make up Section B. There are 21-mark short answer questions in Section C. Section D consists of 15-mark long answer questions. There are 12 mark case study-based questions in Section E. The pattern of the Science question paper is given in the following table:
| Section | Number of questions | Marks Allotted |
|---|---|---|
| A | 20 | 1 mark for each question |
| B | 6 | 2 marks for each question |
| C | 7 | 3 marks for each question |
| D | 3 | 5 marks for each question |
| E | 3 | 4 marks for each question |
Also read: CBSE Class 10 exam pattern
CBSE 10th Science Topics Weightage 2026
Various topics carry different weightage of marks. Comprehending the importance of every topic is crucial for preparing for the board.Pay attention to the things that are most crucial. The weightage of the various topics of Science is given in the following table:
| Units | Weightage |
|---|---|
| Chemical Substances-Nature and Behavior | 31.5% |
| World of Living | 31.5% |
| Natural Phenomena | 15% |
| Effects of Current | 16% |
| Natural Resources | 6% |
Also read: CBSE Class 10 previous year question papers
What are the benefits of CBSE 10th Science Deleted Syllabus 2026?
The benefits of the CBSE 10th Science deleted syllabus 2026 are:
- Your academic stress is lessened by it.
- You are able to complete your syllabus on time.
- Less intelligent students can easily understand a syllabus that is shorter.
- You don't have to waste your time and energy on repetitive concepts and unrelated topics.
- You can easily focus on the important topics.
- You can give extra time to the difficult chapters.
- You can give extra time in practicing the numerical questions.
- You can revise the syllabus multiple times.
All those who intend to take the CBSE Class 10 board exams can regularly visit this page for all of the information related to the CBSE 10th Science deleted syllabus 2026.
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