CBSE Class 10 Science Examination Pattern 2025-26

📘 CBSE Class 10 Science Examination Pattern 2025-26

1. Overall Structure

Component Marks Details
Board / Annual Exam (Theory) 80 3 Hours, NCERT-based, includes MCQs, case-based, SA, LA, HOTS
Internal Assessment 20 Periodic tests, practicals, projects, portfolio
Total 100 Final score (80+20)

2. Weightage of Units in Theory Paper (80 Marks)

Unit No. Unit Name Marks
I Chemical Substances – Nature & Behaviour 25
II World of Living (Biology) 25
III Natural Phenomena (Physics) 12
IV Effects of Current (Physics) 13
V Natural Resources (Environment) 05
Total 80

3. Internal Assessment Split (20 Marks)

Component Marks Explanation
Periodic Tests 5 Three tests in year, best 2 considered
Diverse Methods of Assessment 5 Projects, quizzes, oral tests, assignments, presentations
Practical Work / Lab Activities 5 Hands-on experiments, observation, lab records
Portfolio 5 Classwork, homework, student work samples, achievements, reflections
Total 20 Internal assessment

4. Levels of Difficulty in Theory Paper (CBSE Pattern)

Question Type (Competency Level) Approx. Weightage Examples
Knowledge & Understanding ~30% Definitions, direct NCERT-based recall
Application-based ~40% Numerical problems, diagrams, daily-life use
Higher Order Thinking Skills (HOTS) ~20% Analysis, case-study, interpretation
Competency-based / Innovative ~10% Assertion-Reasoning, Case-based questions

✅ This table helps you plan:

  • Focus on Chemistry & Biology (50 marks combined).
  • Do not neglect Physics (25 marks combined).
  • Environment (5 marks) is small but scoring.
  • Prepare MCQs, Assertion-Reasoning, and Case Studies, since they now form a large share of the paper.

Titles 

  1. CBSE Class 10 Science Examination Pattern 2025-26 – Complete Guide

  2. Science Exam Pattern CBSE Class 10 (2025-26): Marks & Syllabus

  3. CBSE Class 10 Science 2025-26 – Weightage, Difficulty & Assessment

  4. Class 10 CBSE Science Exam 2025-26: Paper Pattern Explained

  5. CBSE Science Exam Pattern 2025-26 for Class 10 Students

Introduction

The CBSE Class 10 Science Examination Pattern 2025-26 provides students with a clear understanding of marks distribution, unit-wise weightage, and levels of difficulty. The Science exam consists of 80 marks for theory and 20 marks for internal assessment, making a total of 100 marks. Units such as Chemical Substances and World of Living carry the highest weightage, while Physics and Environmental topics are equally important. The question paper includes a mix of MCQs, application-based, case-study, and HOTS questions to test conceptual clarity and analytical skills. Knowing the exam pattern helps students prepare strategically for CBSE Board Exams 2026 with confidence and accuracy.

Keywords 

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