ISC Class 11 Science

ISC Class 11 Science Exam Pattern 2026-27

Complete Marking Scheme, Question Paper Pattern & Assessment

Understand the ISC Class 11 Science exam structure, marks distribution, and assessment criteria for the academic year 2026-27. Your complete guide to ISC Class 11 Science examinations.

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4 Core Subjects 70+30/80+20 Pattern 3 Hours Duration Updated for 2026-27

ISC Class 11 Science Exam Structure 2026-27

ISC Class 11 Science follows a comprehensive evaluation pattern with periodic assessments, half-yearly exams, and final examinations for 2026-27.

PT

Periodic Tests

3-4 tests per year
20 marks each

HY

Half-Yearly Exam

November 2026
70-80 marks

FE

Final Exam

February-March 2027
70-80 marks

PR

Practical Assessment

Throughout the year
30 marks

Total Marks per Subject: 70-80 marks (Theory) + 20-30 marks (Practical/Internal) = 100 marks

ISC Class 11 Physics Exam Pattern 2026-27

Component	Marks	Details
Theory Paper	70	3 hours duration
Practical Assessment	30	Experiments + Practical record + Viva
Total	100	—

Theory Paper Structure

• Section A: Multiple Choice Questions (15 marks)
• Section B: Short Answer Questions (25 marks)
• Section C: Long Answer Questions (30 marks)

Practical Assessment

• Experiments: 15 marks
• Practical Record: 10 marks
• Viva Voce: 5 marks

ISC Class 11 Chemistry Exam Pattern 2026-27

Component	Marks	Details
Theory Paper	70	3 hours duration
Practical Assessment	30	Experiments + Practical record + Viva
Total	100	—

Theory Paper Structure

• Section A: MCQs and Very Short Answer (15 marks)
• Section B: Short Answer Questions (25 marks)
• Section C: Long Answer Questions (30 marks)

Practical Assessment

• Experiments: 15 marks
• Practical Record: 10 marks
• Viva Voce: 5 marks

ISC Class 11 Mathematics Exam Pattern 2026-27

Component	Marks	Details
Theory Paper	80	3 hours duration
Internal Assessment	20	Assignments + Projects + Class Participation
Total	100	—

Theory Paper Structure

• Section A: MCQs (20 marks)
• Section B: Short Answer Questions (30 marks)
• Section C: Long Answer Questions (30 marks)

Internal Assessment

• Assignments: 5 marks
• Projects: 5 marks
• Practical Work: 5 marks
• Class Participation: 5 marks

ISC Class 11 Biology Exam Pattern 2026-27

Component	Marks	Details
Theory Paper	70	3 hours duration
Practical Assessment	30	Experiments + Practical record + Viva
Total	100	—

Theory Paper Structure

• Section A: MCQs and Very Short Answer (15 marks)
• Section B: Short Answer Questions (25 marks)
• Section C: Long Answer Questions (30 marks)

Practical Assessment

• Experiments: 15 marks
• Practical Record: 10 marks
• Viva Voce: 5 marks

ISC Class 11 Science Practical Assessment Summary

Subject	Total Practical Marks	Experiments	Record	Viva
Physics	30	15	10	5
Chemistry	30	15	10	5
Biology	30	15	10	5
Mathematics	20 (Internal)	—	—	—

Pro Tip: Practical assessment carries 30% of your total marks in Physics, Chemistry, and Biology. Pay equal attention to practical work, record maintenance, and viva preparation.

Frequently Asked Questions

What is the exam pattern for ISC Class 11 Science in 2026-27?

ISC Class 11 Science follows a comprehensive exam pattern with 70-80 marks theory and 20-30 marks practical/internal assessment depending on the subject. Physics, Chemistry, and Biology have practical components while Mathematics has internal assessment.

What is the practical assessment breakdown for Science subjects?

For Physics, Chemistry, and Biology, practical assessment is 30 marks broken down as: Experiments (15 marks), Practical Record (10 marks), and Viva Voce (5 marks).

What is the duration of ISC Class 11 Science exams?

All ISC Class 11 Science theory exams are 3 hours long. Practical assessments are conducted separately throughout the year.

How can StudyDecode help me with ISC Class 11 Science exams?

StudyDecode provides comprehensive guidance for ISC Class 11 Science students. We help you understand the exam pattern, prepare effectively for theory and practical exams, and build confidence. Book a free consultation to know more.