IB DP Class 12 Science

IB DP Class 12 Science Stream 2026-27

Physics • Chemistry • Biology • Mathematics — HL & SL

Complete your IB DP Science journey with comprehensive guidance for Class 12 students. Your complete IB DP Science roadmap for university success.

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4 Core Subjects 6 Sections HL & SL Options May & Nov 2026 Exams

IB DP Science Syllabus 2026-27

Physics

• Measurements and Uncertainties
• Mechanics
• Thermal Physics
• Waves
• Electricity and Magnetism
• Atomic, Nuclear and Particle Physics
• HL: Wave Phenomena, Fields, Quantum & Nuclear

Chemistry

• Stoichiometric Relationships
• Atomic Structure
• Periodicity
• Chemical Bonding
• Energetics/Thermochemistry
• Kinetics, Equilibrium, Acids & Bases
• HL: Redox, Organic, Advanced Topics

Biology

• Cell Biology
• Molecular Biology
• Genetics
• Ecology
• Evolution and Biodiversity
• Human Physiology
• HL: Nucleic Acids, Metabolism, Plant & Animal Physiology

Mathematics

• AA: Number and Algebra, Functions, Geometry, Calculus
• AI: Number and Algebra, Functions, Geometry, Statistics
• HL (AA): Advanced Calculus, Advanced Algebra
• HL (AI): Advanced Statistics, Advanced Geometry

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IB DP Science Exam Pattern 2026-27

Subject	Paper 1	Paper 2	Paper 3	IA
Physics	20% (MCQ)	40% (SL) / 36% (HL)	20% (SL) / 24% (HL)	20%
Chemistry	20% (MCQ)	40% (SL) / 36% (HL)	20% (SL) / 24% (HL)	20%
Biology	20% (MCQ)	40% (SL) / 36% (HL)	20% (SL) / 24% (HL)	20%
Mathematics	40% (Paper 1)	40% (Paper 2)	20% (HL only)	N/A

HL exams are longer with additional content. Paper 3 is HL only for Mathematics.

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IB DP Science Important Dates 2026-27

Event	Date (Tentative)
Academic Year Start	April 2026
IA Final Submission	February 2027
May 2026 Exams	April 28 - May 22, 2026
November 2026 Exams	October 23 - November 13, 2026
Result Declaration	July 2026 / January 2027

Dates are tentative. Please check with your IB school for exact dates.

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IB DP Science Preparation Tips

Exam Strategy

• Solve past papers regularly
• Take mock exams under timed conditions
• Focus on weak areas and improve
• Revise key concepts systematically

DP Core Completion

• Complete TOK Essay on time
• Submit Extended Essay for assessment
• Document CAS activities thoroughly
• Seek teacher feedback regularly

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IB DP Science Important Chapters

Physics

• Mechanics - Motion, Forces, Energy
• Electricity & Magnetism
• Waves - Wave properties and behavior
• Thermal Physics
• HL: Fields, Quantum, Nuclear

Chemistry

• Chemical Bonding - Structure and properties
• Energetics - Thermodynamics
• Equilibrium - Acids and Bases
• Organic Chemistry
• HL: Redox, Advanced Topics

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IB DP Science Chapter Weightage

Subject	Topic Area	Weightage
Physics	Core Topics (1-8)	70-80%
	HL Topics (9-12)	20-25%
	Internal Assessment	20%
Chemistry	Core Topics (1-8)	70-80%
	HL Topics (9-13)	20-25%
	Internal Assessment	20%
Mathematics	Paper 1	40%
	Paper 2	40%
	Paper 3 (HL only)	20%

Weightage may vary. Please check with your IB school for exact distribution.

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Frequently Asked Questions

What are the exam sessions for IB DP Science in Class 12?

IB DP Science exams are held twice a year — May 2026 (April 28 - May 22) and November 2026 (October 23 - November 13).

What is the passing score for IB Diploma?

Students need a minimum of 24 points out of 45 to pass the IB Diploma. This includes 6 subjects (each graded 1-7, total 42 points) and the DP Core (TOK + EE worth 3 bonus points).

How can StudyDecode help me with IB DP Science?

StudyDecode provides comprehensive guidance for IB DP Science students. From exam preparation to TOK support, EE guidance, CAS completion, and university counseling — we help you successfully complete your DP journey. Book a free consultation to know more.