CBSE Class 10 Science 2026 Weightage: The Central Board of Secondary Education has scheduled the class 10 board exams for February 17 to March 10, 2026. Students preparing for the science subject can get a clear understanding of the weightage of various units, including physics, chemistry, and biology. As per the weightage, the science theory paper will be 70, while the practical will be held for 30 marks.
The theory paper will be divided into five sections with MCQs, short-answer type, and long-answer type questions. To fetch maximum marks, it is essential to check the mark distribution, important chapters, and weightage. By analysing previous year trends, we have provided CBSE class 10 science 2026 weightage for Physics, Chemistry, and Biology subjects here.
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CBSE Class 10 Science 2026 Weightage: Check Total Questions Expected
Students must thoroughly refer to the syllabus for preparation, as questions in CBSE Class 10 Science Exam 2026 will be asked from the NCERT book. Discover weightage for physics, chemistry, and biology chapters here:
Chemistry Chapter-wise Weightage:
| Chapter No. | 1 Mark Qs | 2 Marks Qs | 3 Marks Qs | 4 Marks Qs | 5 Marks Qs | Total |
| 1 | 3 | — | 1 | —-- | —-- | 6 |
| 2 | 3 | —-- | —- | —- | —-- | 3 |
| 3 | 1 | 1 | 1 | 1 | —-- | 10 |
| 4 | 1 | — | – | —- | 1 | 6 |
Biology Chapter-wise Weightage:
| Chapter No. | 1 Mark Qs | 2 Marks Qs | 3 Marks Qs | 4 Marks Qs | 5 Marks Qs | Total |
| 5 | 2 | 2 | 1 | —- | — | 7 |
| 6 | 1 | 1 | — | —- | —- | 3 |
| 7 | 1 | —- | — | —- | 1 | 6 |
| 8 | 3 | —- | — | 1 | —-- | 7 |
Physics Chapter-wise Weightage:
| Chapter No. | 1 Mark Qs | 2 Marks Qs | 3 Marks Qs | 4 Marks Qs | 5 Marks Qs | Total |
| 9 | —-- | — | 2 | 1 | —-- | 10 |
| 10 | — | 1 | —- | — | — | 2 |
| 11 | 2 | —- | —--- | —- | 1 | 7 |
| 12 | 3 | — | 1 | — | — | 6 |
| 14 | — | 1 | 1 | — | — | 5 |
Students should set their study timetable considering the weightage carried by CBSE class 10 Science 2026 chapters. For better results, practicing previous year questions can prove effective in enhancing paper-solving accuracy and also time management prowess.