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Force and pressure
Force and pressure
Force - A push or pull
Exploring forces
Force can change the state of Motion
Contact and Non-contact forces
Pressure exerted by liquids and gases
Atmospheric pressure
Sound
Sound
How is a sound produced?
Amplitude time period and frequency of a vibration
Audible and inaudible sounds
What are the harms of noise pollution?
Friction
Friction
Force of friction
Factors affecting friction
Increasing and reducing friction
Wheels reduce friction
Fluid friction
Light
Light
Laws of reflection
Regular and diffused reflection
Multiple images Sunlight – white or colored What is inside our eyes?
stars and the solar system
stars and the solar system
The moon
The sun
Constellations
The solar system
Other members of solar system
Some natural phenomena
Some natural phenomena
Lightning
Types of charges and their interaction
Transfer of charge
The story of lightning
Earthquakes
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