Physics

This chapter covers topics such as Pressure Exerted by Liquids and Gases, Pressure, Exploring Forces, A Force Can Change the State of Motion, Force - A Push or a Pull, Contact Forces, and Non-contact Forces.

This chapter covers topics such as Factors Affecting Friction, Force of Friction, Fluid Friction, Increasing and Reducing Friction, and Friction : A Necessary Evil.

This chapter covers topics such as Amplitude, Time Period and Frequency of a Vibration, Sound Is Produced by a Vibrating Body, Sound Needs a Medium for Propagation, Sound Produced by Humans, Audible and Inaudible Sounds, etc.

This chapter covers topics such as Liquids Conduct Electricity, Chemical Effects of Electric Current and Electroplating.

This chapter covers topics such as Earthquake, Charge, Charging by Rubbing, Lightning, and Sparks and Electric Charges.

This chapter covers topics such as Inside Our Eyes, Laws of Reflection, Regular and Diffused Reflection, Multiple Images, Reflected Light Can be Reflected Again, Care of Eyes, Sunlight - White or Coloured and Braille System.

This chapter covers topics such as Solar System, The Moon and The Stars and Constellations.