An organized pattern of investigation or standard sequence of steps normally followed by scientists or biologists all over the world in investigating particular event or problem

Steps include :

• Identification of the problem which then forms the basis of systematic observations.
• Posing questions and formulating of hypothesis based on them
• Testing hypothesis by conducting experiments with controls , where necessary
• Making predictions and testing them by further experiments
• Confirming hypothesis supported by evidence/ observations
• Formulating a theory which may be modified in the light of new knowledge