Class 9 science chapter 12 notes Sound
Class 9 science chapter 12 notes Sound
CBSE Class 9 Science Notes
- Chapter 1 – Matter In Our Surroundings
- Chapter 2 – Is Matter Around Us Pure?
- Chapter 3 – Atoms And Molecules
- Chapter 4 – Structure Of The Atom
- Chapter 5 – The Fundamental Unit Of Life
- Chapter 6 – Tissues
- Chapter 7 – Diversity In Living Organisms
- Chapter 8 – Motion
- Chapter 9 – Force And Laws Of Motion
- Chapter 10 – Gravitation
- Chapter 11 – Work And Energy
- Chapter 12 – Sound
- Chapter 13 – Why Do We Fall Ill?
- Chapter 14 – Natural Resources
- Chapter 15 – Improvement In Food Resources