CBSE Session 2025-26 100% NCERT Aligned Theory: 80M + IA: 20M 13 Chapters

CBSE Class 10 Science Study Material (2025-26)

Chapter-wise Detailed Notes, 5-Min Revision Notes, NCERT Solutions, Important Questions & Interactive MCQs

📖 Curriculum & Exam Overview (पाठ्यक्रम एवं परीक्षा परिचय)

Welcome to the complete CBSE Class 10 Science portal for the 2025-26 academic session. Class 10 Science is a pivotal foundation for secondary board examinations and higher secondary streams (Medical, Engineering, and General Sciences). Our curriculum strictly adheres to the rationalized NCERT syllabus published by the National Council of Educational Research and Training and the latest CBSE marking blueprint. Each chapter below is organized into 5 dedicated learning formats: comprehensive conceptual notes with balanced chemical equations and experimental activities, rapid 5-minute revision summaries, complete NCERT in-text and exercise step-by-step solutions, high-yield board examination questions (VSA, SA, LA, and Case Studies), and timed interactive MCQ quizzes with instant result analytics.

⚖️ CBSE Class 10 Science Unit-wise Weightage (इकाईवार अंक विभाजन)

Unit / इकाईUnit Title (विषय)Chapters (अध्याय)Marks (अंक)
Unit I Chemical Substances - Nature and Behaviour
रासायनिक पदार्थ - प्रकृति एवं व्यवहार
Ch 1 - 425 Marks
Unit II World of Living
सजीव जगत (जीव विज्ञान)
Ch 5 - 825 Marks
Unit III Natural Phenomena
प्राकृतिक घटनाएँ (प्रकाशिकी)
Ch 9 - 1012 Marks
Unit IV Effects of Current
विद्युत का प्रभाव
Ch 11 - 1213 Marks
Unit V Natural Resources
प्राकृतिक संसाधन (पर्यावरण)
Ch 135 Marks
Total Theory Examination / सैद्धांतिक परीक्षा80 Marks
Internal Assessment (Practicals & Periodic Tests) / आंतरिक मूल्यांकन20 Marks

📚 Complete Chapter Directory (अध्यायवार संपूर्ण अध्ययन सामग्री)

Select any chapter to access Detailed Notes, Revision Sheets, Step-Marked NCERT Solutions, and Interactive MCQs.

Showing 13 of 13 Chapters

🎯 CBSE Class 10 Science Board Exam Strategy (परीक्षा में 95+ स्कोर करने की रणनीति)

To score 95+ in CBSE Class 10 Science, master the conceptual fundamentals and focus heavily on chemical equations, labeled ray diagrams, and standard SI units. The theory examination carries 80 marks distributed across 5 core units: Chemical Substances (25 marks), World of Living (25 marks), Natural Phenomena (12 marks), Effects of Current (13 marks), and Natural Resources (5 marks). Allocate daily time for writing balanced equations, practicing circuit diagrams, and solving previous 5-year question papers with step marking.

❓ Frequently Asked Questions (अक्सर पूछे जाने वाले प्रश्न)

Are these Class 10 Science notes updated for the CBSE 2025-26 Board Exam?
Yes, 100%. All chapter notes, NCERT solutions, and important questions strictly follow the rationalized NCERT syllabus and deleted-syllabus guidelines approved by CBSE for the 2025-26 academic session.
How can I access NCERT Solutions in both Hindi and English mediums?
You can toggle the medium switch buttons [हिंदी माध्यम] or [English Medium] at the top of the chapter list. Each chapter card provides direct links to NCERT Solutions in your selected medium.
Which units carry the highest weightage in Class 10 Science?
Unit I (Chemical Substances - Nature and Behaviour) and Unit II (World of Living) carry the highest weightage, contributing 25 marks each (total 50 out of 80 marks in theory).
Are step-by-step balanced chemical equations provided in the solutions?
Yes. Every chemical equation is balanced with phase symbols (s, l, g, aq) using KaTeX typography, along with reaction conditions and physical observations.
How can I practice for the 20-mark objective and MCQ questions?
Click on the "Practice MCQs" button under each chapter. It opens an interactive timed quiz testing conceptual, assertion-reason, and case-based questions with instant scoring.