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

CBSE Class 10 Science Examination Pattern 2025-26 – Complete Guide
Science Exam Pattern CBSE Class 10 (2025-26): Marks & Syllabus
CBSE Class 10 Science 2025-26 – Weightage, Difficulty & Assessment
Class 10 CBSE Science Exam 2025-26: Paper Pattern Explained
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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CBSE Class 10 Science Examination Pattern 2025-26