CBSE 2026 Class 10 Science Important Topics for Exam Day: Central Board of Secondary Education (CBSE) is set to conduct the CBSE Class 10 Science Paper 2026 on February 25, 2026. Students preparing for this crucial examination need to focus on essential topics and chapters that carry significant weightage in the board exams for Physics, Chemistry, and Biology. Understanding which topics to prioritize can help students maximize their scores and prepare more effectively for the exam day. Candidates who are interested in knowing about the CBSE 2026 Class 10 Science Important Topics for Exam Day can check the details provided here.
The CBSE Class 10 Science Paper 2026 follows a mixed question pattern, which includes MCQs to assess basic understanding, short and long answer questions requiring explanations and diagrams, case-based and assertion-reason questions to evaluate logical reasoning, and numerical problems mainly from Physics. Additionally, around 33% internal choice is provided, offering flexibility to students.
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CBSE 2026 Class 10 Science Important Topics for Exam Day
Go through the CBSE 2026 Class 10 Science Important Topics for Exam Day as mentioned in the table below:
| Name of the Topic | Expected Weightage |
| Physics | |
| Electricity | 8-10 marks |
| Human and the colourful world | 3-5 marks |
| Magnetic effects of electric current | 3-5 marks |
| Light | 10-11 marks |
| Chemistry | |
| Chemical actions and reactions | 4-5 marks |
| Metals and Non-metals | 8-9 marks |
| Acids, bases and salts | 4-5 marks |
| Carbon and it's compounds | 9-10 marks |
| Biology | |
| Life Processes | 10-11 marks |
| Control and Coordination | 6-7 marks |
| Heredity and Evolution | 5-6 marks |
| How do organisms reproduce? | 8-10 marks |
| Our environment | 5-6 marks |
| Management of natural resources | 5-6 marks |
In the final phase of preparation for the CBSE Class 10th Board Exam 2026 for the Science paper, students should avoid common mistakes that can cost valuable marks. Ignoring diagrams, especially in Biology and Light-related chapters, can lead to unnecessary score loss. In Chemistry, improperly balanced equations and unit errors in numerical answers are frequent issues. In optics, incomplete ray diagrams without proper focal markings can reduce accuracy. Additionally, neglecting NCERT textbooks and skipping previous years’ question papers often results in poor familiarity with exam patterns and question trends.
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