The word science comes from the Latin word scientia which implies knowledge . The science as subject has come to mean the systematic, consistent and excellent study of the physical world including everything than can be seen, observed or detected in nature by the man and society and the knowledge that grow s out of such study. usually the science is characterized by the methodologies and approaches of the hypothesises, postulates, assumptions, theories and laws based experimental observations and mathematical conclusions.The science is broadly categorized into two groups-Natural science and Social science .natural science deals with the nature or physical world .

273 degree celcious.

The temperature at which all substances have zero thermal energy


Any substance which when added to a reaction, alters the rate of the reaction but remains chemically unchanged at th e end of the process is called


The study of the inter - relations of animals and plants with their environment is called


Study of insects is called


A unit used to express the focal power of optical lenses

Escape Velocity

The velocity that a body with less mass must achieve in order to escape from the gravitational attraction of a more massive body is called

Nitrous Oxide

Laughing gas is chemically known as


he blood vessels carrying blood from the heart to v ari ous parts of the body is called

Light year

The distance travelled by light in one year is called


An organism which derives its nourishment from an other living organism is called

Newton's second law of motion

Newton's which law states that the rate of change of m omentum of a body is directly proportional to the force applied and takes place in the di rection in which the force act

Sputnik - I. (4 oct 1957)

Which is the w orld's first man - made satellite


Which planet is t he brightest of all the planets


Small pieces of solid matter which are found scattered in the inter - planetary space of the solar system are known as


The largest gland in the body which is dark red in colour is


Inadequate secretion of Insul in hor mone causes which disease


Common cold, Influenza, Chickenpox and Measles are caused due to the attack of Virus or Bacteria


In which atmospheric layer are the c ommunication satellite located

Tota l internal reflection of light

The scientific prin ciple behind ' Fibre Optics' is

True ( because it has nodes and I nternodes )

Ginger is a stem and not a root, True or False