Learning Smart

A scientist play big role in development of human life.  All we know and we use now is result of drudge works of scientist in the past. Therefore, to become a scientist, you must work hard and never give up until you reach your destination.

A Scientist begins an investigation by observing an object or an activity. Observation typically involves one or more of the human senses –hearing, sight, smell, taste, and touch. Scientists typically use tool to aid in their observation. For example, a microscope helps view away to be seen by the unaided eye.

Scientists typically apply their observation skills to an experiment. An experiment is any change the conditions under which events occur. It can be something extremely simple, such as heating a solid to see when it melts, of something highly complex, such as bouncing a radio signal off the surface of a distant planet. Scientists typically repeat experiments, sometimes many times, in order to be sure that the results were not affected by unforeseen factors.

Most experiments involve real objects in the physical world, such as electric circuits, chemical compounds, or living organisms. However, with the rapid progress in electronics, computer simulations can now carry out some experiments instead. If they are carefully constructed, these simulations or models can accurately predict how real objects will behave.