CBSE Class 10 Science Marks Distribution Chapter-Wise 2025-26
The CBSE Class 10 Science 2025‑26 weightage is 80 marks for theory paper and 20 marks for the internal assessment. Find the chapter-wise weightage for the CBSE Class 10 Science exam here.
CBSE Class 10 Science Marks Distribution Chapter-Wise 2025-26:
The CBSE Class 10 Social Science (Science) paper for the 2025–26 session carries a total of 80 marks for the written examination, along with an additional 20 marks allocated for internal assessment. The syllabus is organized into five major units. Among these, the units
Chemical Substances – Nature and Behaviour
and
World of Living carry
the highest weightage, contributing 25 marks each to the theory paper. In contrast, the Natural Resources unit has the lowest weightage, accounting for just 5 marks. Understanding the CBSE Class 10 Science weightage for 2025–26 is highly beneficial, as it helps students prioritize topics, allocate their study hours more efficiently, and prepare strategically for the board examination.
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CBSE Class 10 SST Marks Distribution 2025-26 Chapter-Wise
CBSE Class 10 Science Marks Distribution Chapter-Wise 2025-26
Find the detailed chapter-wise marks distribution for CBSE Class 10 Science 2025–26 below.
Chapter No. | Chapter Name | Weightage (Marks Distribution) |
1 | Chemical Substances-Nature and Behaviour | 25 |
2 | World of Living | 25 |
3 | Natural Phenomena | 12 |
4 | Effects of Current | 13 |
5 | Natural Resources | 05 |
Total Marks | 80 | |
CBSE Class 10 Science Question Paper Design 2025–26
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Students can find the question paper design for CBSE Class 10 Science 2025–26 below:
Competencies | Suggestive verbs | Marks |
Demonstrate Knowledge and Understanding | State, name, list, identify, define, suggest, describe, outline, summarize etc | 40 |
Application of Knowledge/Concepts | Calculate, illustrate, show, adapt, explain, distinguish, etc. | 24 |
Formulate, Analyze, Evaluate and Create | Interpret, analyze, compare, contrast, examine, evaluate, discuss, construct, etc. | 16 |
Students should note that the CBSE Class 10 Science Question Paper for 2025–26 will include a variety of question types such as Very Short Answer (VSA) and objective-type items, Assertion–Reasoning questions, Short Answer (SA) questions, Long Answer (LA) questions, and Source-based, Case-based, Passage-based, or Integrated assessment questions. An internal choice of roughly 33% will also be provided in the paper.
To score higher marks in the final examination, students are advised to refer to the following NCERT resources: Science Textbook for Class IX and Class X, Exemplar Problems for Class IX, and Class X. These materials offer comprehensive practice and strengthen conceptual understanding.
CBSE Class 10 Weightage Marks for Other Subjects |
| Name of the Subject | Link to check Weightage |
| SST (Social Studies) | CBSE Class 10 SST Marks Distribution 2025-26 Chapter-Wise |
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