Solubility • A mixture is defined as a mass obtained by mixing up two or...

Work, Energy & Power • Work: The product of force acting on a body and...

Metals • Reaction with oxygen: When metal is treated with oxygen on heating they react...

Measurement Those physical quantities, which can neither be derived from others nor be further resolved...

Force is an external agent, which changes or tends to change the state, shape, acceleration...

Machine • The device or instruments, which make our work easier, faster and convenient are...