Class 10 Science — CBSE 2026-27 Syllabus & Notes | Boundless Maths
🧪 CBSE 2026-27 Code 086 5 Units · Board Exam Year

Class 10 Science
CBSE 2026-27 — Syllabus & Comprehensive Notes

Class 10 Science (Subject Code 086) covers Physics, Chemistry and Biology across 5 units for your board exam. Unlike Class 9, the Class 10 syllabus and textbook remain unchanged for 2026-27 — a new textbook is expected only for the 2027-28 session. This page covers the complete current syllabus, unit-wise marks, and comprehensive chapter-wise Science Notes to help you prepare with confidence.

5
Units
80
Theory Marks
20
Internal Assessment
100
Grand Total
Complete Syllabus

CBSE Class 10 Science Syllabus 2026-27

Five units, 80 theory marks + 20 marks Internal Assessment (Periodic Assessment, Practical Work, Portfolio) = 100 marks total. Annual Examination based on the entire syllabus.

UnitThemeMarks
I — Chemical Substances: Nature and BehaviourChemical Reactions & Equations, Acids Bases & Salts, Metals & Non-metals, Carbon & its Compounds25
II — World of LivingLife Processes, Control & Coordination, Reproduction, Heredity25
III — Natural PhenomenaLight — Reflection & Refraction (mirrors, lenses, human eye, prism, dispersion)12
IV — Effects of CurrentElectricity, Ohm's Law, Magnetic Effects of Current13
V — Natural ResourcesOur Environment — ecosystems, ozone depletion, waste management5
Total (Theory)80
Internal Assessment (Periodic + Practical + Portfolio)20
Grand Total100
📌 Textbook status for 2026-27

Unlike Class 9, which moved to a new integrated NCERT Science textbook this year, Class 10 continues with the current NCERT Science textbook and syllabus structure for 2026-27 — no changes this session. A new, restructured textbook is expected for the 2027-28 academic year, similar to what Class 9 just went through.

⚠️ Formative-only topics — not tested in the board exam

Three topics are assessed only formatively (Internal Assessment/Portfolio), not in the year-end summative exam: Periodic Classification of Elements, Heredity and Evolution, and part of Effects of Current (Motor, Electromagnetic Induction, Electric Generator). Schools may still teach these for conceptual understanding, but board exam questions won't be drawn from them.

Comprehensive Study Resource

Class 10 Science Notes — Physics, Chemistry & Biology

Chapter-wise notes covering all 5 units, with clear explanations, labelled diagrams, and CBSE board exam pattern key points highlighted throughout.

📘 Downloadable PDF

Class 10 Comprehensive Science Notes

All 5 units · Physics, Chemistry & Biology · Board exam pattern · Instant download

₹699 one-time · instant download

⚗️ Chemistry

Chemical Reactions & Equations, Acids Bases & Salts, Metals & Non-metals, Carbon & its Compounds — reactions, equations and properties explained clearly.

🧬 Biology

Life Processes, Control & Coordination, Reproduction, Heredity — labelled diagrams for every process and structure.

⚡ Physics

Light — Reflection & Refraction, Electricity, Magnetic Effects of Current — ray diagrams, circuit diagrams, and formulas.

  • Chapter-wise explanations covering all 5 units
  • Labelled diagrams for every key concept
  • CBSE board exam pattern — key points highlighted
  • Downloadable PDF for offline revision
  • Ideal for board exam revision and quick recap
📘 Order Science Notes — ₹699

🔒 Secured payment · PDF delivered instantly after purchase

Common Questions

Frequently Asked Questions

The 2026-27 syllabus (Subject Code 086) has 5 units: Unit I — Chemical Substances: Nature and Behaviour (25 marks), Unit II — World of Living (25 marks), Unit III — Natural Phenomena (12 marks), Unit IV — Effects of Current (13 marks), and Unit V — Natural Resources (5 marks). Total: 80 marks theory + 20 marks Internal Assessment.
No — unlike Class 9, which moved to a new integrated NCERT textbook this year, Class 10 continues with the current NCERT Science textbook for 2026-27. A new textbook is expected for the 2027-28 session.
Three topics are assessed only formatively (not in the year-end summative exam): Periodic Classification of Elements, Heredity and Evolution, and part of Effects of Current (Motor, Electromagnetic Induction, Electric Generator). Schools may still cover these for conceptual understanding and Internal Assessment.
Yes — comprehensive chapter-wise notes covering Physics, Chemistry and Biology are available as a downloadable PDF for ₹699, with clear explanations, diagrams, and CBSE board exam pattern key points highlighted.
Get Started

Board-Ready Class 10 Science Preparation

Personalised, concept-first coaching for CBSE Class 10 Science board exam preparation — in Gurugram or fully online, pan-India.

Expert CBSE Coaching · Class 9–12