Chapter 1: Matter in Our Surroundings
Class 9 Science · Matter in Our Surroundings · NCERT notes
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Class 9 Science Notes — All Chapters Read Online
Free Class 9 Science notes to read online. 15 chapters with revision notes and PDF preview. 6 new chapters added for 2026. Topics include Ch 1 Matter in Our Surroundings, Ch 2 Is Matter Around Us Pure, Ch 3 Atoms and Molecules, Ch 4 Structure of the Atom. Updated for CBSE exams on NCERT Help.
Browse chapter-wise Class 9 Science notes. Each chapter opens a read-online page — no download required. This index lists 15 chapters.
All chapters — Class 9 Science
Chapter 2: Is Matter Around Us Pure
Class 9 Science · Is Matter Around Us Pure · NCERT notes
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Chapter 3: Atoms and Molecules
Class 9 Science · Atoms and Molecules · NCERT notes
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Chapter 4: Structure of the Atom
Class 9 Science · Structure of the Atom · NCERT notes
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Chapter 5: The Fundamental Unit of Life
Class 9 Science · The Fundamental Unit of Life · NCERT notes
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Chapter 6: Tissues
Class 9 Science · Tissues · NCERT notes
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Chapter 7: Diversity in Living Organisms
Class 9 Science · Diversity in Living Organisms · NCERT notes
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Chapter 8: Motion
Class 9 Science · Motion · NCERT notes
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Chapter 9: Force and Laws of Motion
Class 9 Science · Force and Laws of Motion · NCERT notes
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Chapter 10: Gravitation
Class 9 Science · Gravitation · NCERT notes
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Chapter 11: Work and Energy
Class 9 Science · Work and Energy · NCERT notes
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Chapter 12: Sound
Class 9 Science · Sound · NCERT notes
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Chapter 13: Why Do We Fall Ill
Class 9 Science · Why Do We Fall Ill · NCERT notes
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Chapter 14: Natural Resources
Class 9 Science · Natural Resources · NCERT notes
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Chapter 15: Improvement in Food Resources
Class 9 Science · Improvement in Food Resources · NCERT notes
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Frequently asked questions
How many chapters of Class 9 Science notes are available?
This page lists 15 chapter-wise note pages for Class 9 Science. Each link opens a read-online notes page.
Are these Class 9 Science notes free to read online?
Yes. All notes on NCERT Help are free to read online — no login or download required.
Are these notes useful for CBSE board exams?
Yes. The notes follow NCERT / CBSE Class 9 Science syllabus and are useful for board exam revision.