| A. Physics |
- Friction: Force of Friction, Factors Affecting Friction, Friction: A Necessary Evil, Increasing and Reducing Friction, Wheels Reduce Friction, Fluid Friction
- Sound: Sound is produced by a vibrating Body, Sound produced by humans, Sound needs a medium for propagation, We hear sound through our ear, Amplitude, time Period & Frequency of Vibration, Audible & Inaudible Sounds, Noise & Music, Noise Pollution
- Light: What makes things Visible, Laws of Reflection, Regular and Irregular Reflection, Reflected Light can be Reflected Again, Multiple Images, Sunlight – White or Coloured, What is inside our eyes, Care of the Eyes, Visually Challenged persons can Read & Write, What is the Braille System
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Abhivyakti