Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events.
We can say that force is a push or pull acting on an object or energy as an attribute of physical action or movement.
A mechanical device that changes the direction or magnitude of a force is known as a simple machine.
Light is the form of energy which gives sensation of sight.
Sound is the form of energy which gives sensation of hearing.
Magnet is a material that can produce its own magnetic field.
Electricity is a basic part of nature and it is one of our most widely used forms of energy.
Matter is anything that has mass and takes up space.
Chemiacls are substance which are obtained by chemical process.
Air is mixture of gases comprising the Earth’s atmosphere.
Metals and Nonmetals are different types of materials present around us.
The living beings they are all complex molecular structures or systems that fulfill essential functions.