Board Exam Year 2026

ISC Class 12 Science Guide 2026-27

Complete Guide for Physics, Chemistry, Mathematics/Biology & More

Board Exam Year! Get comprehensive guidance for ISC Class 12 Science stream with detailed subject coverage, exam patterns, and preparation strategies for 2026-27. Your complete ISC Class 12 Science roadmap for board exam success.

Explore Subjects Free Consultation

6+ Subjects 6 Sections Feb-Mar 2026 Exams Updated for 2026-27

ISC Class 12 Science Syllabus 2026-27

The ISC Class 12 Science syllabus is designed to provide a comprehensive understanding of scientific concepts as per CISCE guidelines for the academic year 2026-27.

Subject	Key Topics	Marks
Physics	Electrodynamics, Optics, Modern Physics, Thermodynamics, Waves, Mechanics	70
Chemistry	Physical Chemistry, Inorganic Chemistry, Organic Chemistry	70
Mathematics	Calculus, Algebra, Trigonometry, Coordinate Geometry, Statistics, Vectors	80
Biology	Genetics, Ecology, Plant & Animal Physiology, Evolution, Biotechnology	70
English	Language, Literature, Grammar, Writing Skills, Comprehension	80
Second Language	Grammar, Literature, Writing, Comprehension	80

Note: Physics, Chemistry, and Biology have 70 marks theory and 30 marks practical. Mathematics and English have 80 marks theory and 20 marks internal assessment.

View Detailed Syllabus Download from CISCE

ISC Class 12 Science Exam Pattern 2026-27

ISC Class 12 Science follows a comprehensive evaluation pattern with theory examinations and practical assessments for 2026-27.

Subject	Total Marks	Theory	Practical/Internal	Exam Duration
Physics	100	70	30	3 hours
Chemistry	100	70	30	3 hours
Mathematics	100	80	20	3 hours
Biology	100	70	30	3 hours
English	100	80	20	3 hours
Second Language	100	80	20	3 hours

View Detailed Exam Pattern

ISC Class 12 Science Important Dates 2026-27

Event	Date (Tentative)	Details
Academic Year Start	April 2026	Commencement of new academic session
First Periodic Test	May 2026	Covering topics from April-May
Second Periodic Test	August 2026	Covering topics from June-August
Half-Yearly Exam	November 2026	Full syllabus coverage (Term 1)
Third Periodic Test	December 2026	Covering topics from September-November
Fourth Periodic Test	February 2027	Covering topics from December-February
Board Exam Start	February 2026	Commencement of ISC Class 12 board exams
Board Exam End	March 2026	End of ISC Class 12 board exams
Result Declaration	May 2026	Board exam results announced by CISCE

Note: Dates are tentative. Please check with CISCE official website for the latest updates.

View All Important Dates

ISC Class 12 Science Preparation Tips

Subject-wise Strategy

• Physics: Focus on concepts, numericals, and derivations
• Chemistry: Balance theory with practical applications
• Mathematics: Practice problems daily, focus on calculus and algebra
• Biology: Focus on diagrams, processes, and nomenclature
• English: Focus on writing skills and literary analysis

Board Exam Strategy

• Complete syllabus by November 2026
• Start revision from December 2026
• Take mock tests from January 2027
• Practice numerical problems and MCQs regularly
• Focus on high-weightage topics
• Review previous years' question papers
• Focus on presentation and clarity

View All Preparation Tips

ISC Class 12 Science Important Chapters

Physics

• Electrodynamics
• Optics
• Modern Physics
• Thermodynamics
• Waves & Mechanics

Chemistry

• Physical Chemistry
• Inorganic Chemistry
• Organic Chemistry
• Biochemistry

Mathematics

• Calculus
• Algebra
• Trigonometry
• Coordinate Geometry
• Vectors & Statistics

Biology

• Genetics
• Ecology
• Plant & Animal Physiology
• Evolution & Biotechnology

View All Important Chapters

ISC Class 12 Science Chapter Weightage

Subject	Unit / Chapter	Weightage (%)	Marks
Physics	Electrodynamics	30%	21
	Optics	20%	14
	Modern Physics	20%	14
Chemistry	Physical Chemistry	35%	24.5
	Organic Chemistry	35%	24.5
	Inorganic Chemistry	30%	21
Mathematics	Calculus	35%	28
	Algebra	30%	24
	Coordinate Geometry	20%	16

Note: Weightage may vary slightly. Always check with your school for the exact distribution.

View Full Chapter Weightage

Career Opportunities After ISC Science

Engineering

B.Tech, B.E., JEE Advanced, Various Specializations

Medical

MBBS, BDS, NEET, AIIMS, JIPMER, Veterinary

Research & Pure Sciences

B.Sc., M.Sc., PhD, Research, Biotechnology, Nanotechnology

Computer Science & IT

B.Tech CS, Data Science, AI, Cybersecurity, Software Engineering

Data Science & Analytics

Data Scientist, Business Analytics, Machine Learning

Teaching & Academia

Teaching, Research, Education, Academic Positions

Get Career Counseling

Frequently Asked Questions

What subjects are included in ISC Class 12 Science?

ISC Class 12 Science includes Physics, Chemistry, Mathematics/Biology, English, and Second Language as core subjects. Students can choose between Mathematics and Biology based on their career goals.

When are the ISC Class 12 Science board exams in 2026?

ISC Class 12 Science board exams will be conducted in February-March 2026. The official date sheet is released by CISCE on their official website.

What career options are available after ISC Science?

Career options include Engineering (JEE), Medical (NEET), Research, Biotechnology, Data Science, Computer Science, and various other STEM fields.

What is the exam pattern for ISC Class 12 Science subjects?

ISC Class 12 Science subjects have 70-80 marks theory and 20-30 marks practical/internal assessment depending on the subject. Physics, Chemistry, and Biology have practical components.

How can StudyDecode help me with ISC Class 12 Science?

StudyDecode provides comprehensive guidance for ISC Class 12 Science students. From syllabus planning and exam preparation to JEE/NEET guidance and career counseling — we help you achieve board exam success. Book a free consultation to know more.