Class 9 Science Notes Chapter 12 Sound

Class 9 Science Notes Chapter 12 Sound

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• 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