What are the standards in science and why are they important, what are the 2 examples of scientific standards.

Answer 1

Standards provide for accurate measurement by researchers in different parts of the world. By providing a direct path from the researcher back to the standard, people understand that accuracy was maintained.
At one point there were actual physical standards: a chunk of metal that weighed a kilogram and two marks on very low expansion metal bar exactly 1 meter apart kept in Paris - which was the center for scientific exchange if you can believe it. These measurements were transferred to other standards which were taken to specific countries, like Washington DC, and used to compare with moveable standards taken to companies that made usable standards for labs, etc.
Today, the distance standard is given in wave lengths of a certain light which can be produced in lab and measured with an interferometer
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