The answer is obvious, a picture is worth a thousand words. Being able to lay out in pictora or graphical form the meaning and results of the data make it clear often to laymen. It is also a check on the work in mathematically analysing methods and results.
Experiment.
we need to identify the precautions method in performing an experiment inside the laboratory to determine do's and don'ts and to make our experiment satisfied. Knowing the laboratory set-up is important so that we can perform our experiments easy and enjoyable.
To make sure what you publish is correctly, and to provide crosscheck of your methods and results.
Physical methods of analyzing food constituents include techniques such as microscopy to observe food structure, viscosity measurements to assess texture, X-ray diffraction to analyze crystalline structure, and spectroscopy to measure properties like color or light absorption. These methods provide valuable information about the physical characteristics of food components without altering their chemical composition.
In science, evidence is any result of an experiment done with the scientific method. Evidence and experiments to acquire evidence are methods by which one can scientifically prove a claim.