1. Production of Sound Sound is produced due to the vibration of objects. Vibration is the rapid to and fro motion of an object. Vibrating objects are...

WORK AND ENERGY 1.Work Done By A Constant Force • Work is a scalar quantity equal to the product of the displacement x and the component of the for...

1 Motion (Uniform Motion And Non Uniform Motion, Acceleration and Velocity) • A particle is a point-like object, has mass but infinitesimal si...

1. Each organism is different from all other organisms. 2. In this activity, we decide which characteristics (we can run, but the Banya...

1. All the living organisms are made up of fundamental unit of life called” cell”. 2. The cell is a Latin word for “a little room”....

Contribution to the Atomic theory Timeline • More than 2400 years ago, he named the smallest piece of matter “ATOMOS ,” meaning &ldquo...

1.Laws of Chemical Combination Verification of “Law of Conservation of mass” A solution of sodium chloride and silver nitrate are ta...

1. Pure Substance & mixture PURE SUBSTANCE MIXTURE • Pure substance consists of a single type...

Particle Nature of Matter Anything that occupies space and has mass and is felt by senses is called matter. Matter is the form of five basic elements the P...

...hemicals which may be used for the treatment of diseases and for reducing the suffering from pain are called medicines or drugs. The branch of science which mak...