SCIENTIFIC METHOD
The first step of scientific methods is to make observation. It is a procedure of collecting facts. In this way all possible information are gathered about a physical phenomenon. Observation is an act of recognizing and noting phenomena as they occur in nature or distinguish from experiment.
The second step of scientific methods is Hypothesis. It is a provisional explanation of anything. It is a supposition or proposition which is assumed for the sake of argument. On the basis of the data collected through observation a hypothesis can be developed.
EXPERIMENT:
The third step of scientific methods is experiment. It is an organized process which is used to test the truth of the hypothesis. For example, a simple experiment can be done to test the hypothesis that light travels in straight line. In the experiment we take three card boards, each with a hole. The three cards boards are then placed in front of lamp. The light travels from the hole of the three cards. If any of these cards is disturbed from its position, the light of the lamp cannot be seen. Hence it is proved by that light travels in straight line.
THEORY
This step of scientific methods is the formation of a theory it is an exposition of abstract principles of science. After the successful verification of an assumption and with the help of careful experimentation, it becomes a theory and is applicable to similar phenomenon.
LAW
The last step of scientific methods is to make a law about a natural phenomenon. It is a statement regarding the behavior of nature which explains the observation and experiments of the past and can predict about other aspects of the nature.
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