Class 8 Science Notes. Chapter 13 Sound. PDF Download Free.
- Chapter 1 Crop Production And Management
- Chapter 2 Microorganisms Friend And Foe
- Chapter 3 Synthetic Fibres And Plastics
- Chapter 4 Materials Metals And Non-Metals
- Chapter 5 Coal And Petroleum
- Chapter 6 Combustion And Flame
- Chapter 7 Conservation Of Plants And Animals
- Chapter 8 Cell Structure And Functions
- Chapter 9 Reproduction In Animals
- Chapter 10 Reaching The Age Of Adolescence
- Chapter 11 Force And Pressure
- Chapter 12 Friction
- Chapter 13 Sound
- Chapter 14 Chemical Effects Of Electric Current
- Chapter 15 Some Natural Phenomena
- Chapter 16 Light
- Chapter 17 Stars And The Solar System
- Chapter 18 Pollution Of Air And Water