to find accurate information
when collecting data
Standard measurements make it easier for everyone to know what that measurement means. The metric system, which is the standard system used by scientists, is specifically designed to be easy to use. The English system is much more complicated, mathematically.
Scientists make observations.
It is a fundamental requirement of scientific research that experiment can be replicated so that other experimenters can validate results. This would be impossible unless scientists used standard units and methods of measurement.
Standard International (SI). It is the modern form of the metric system.
the Kelvin temperature scale is not used for everyday measurements in any country. It is used by scientists in every country.
Scientists look for observable patterns and they measure whatever is objectively quantifiable.
Science, including counting, relies on exact measurements and observations.
Because
Simply to make a series of 'standard' measurements that are recognised in any country.
What measurements are you performing? Make sure you aren't bitten if it's large, and make sure you don't kill the animal (unless you need it to be dead)
Finding melting/boiling points of substances is an example, its logical, find it out yourself.
Scientists who work temporarily in Antarctica measure whatever their specialty might be, in search of answers to questions that affect the health of planet earth. These elements include animal body counts, weights and measures of marine creatures, density and make-up of ice; atmospheric measurements, including wind speed, temperatures and humidity, and astronomical measurements, including distances to celestial objects. Sonic mapping of the continent's geography may also produce measurements -- and more. The standard for measurements is the metric standard.
They use the Metric system.
1) It is an international standard, so all scientists use the same measurements. For comparison, for example, different countries have different definitions of a pound. 2) Calculations are easier, because of the decimal prefixes.
They use scientific notation for very large or very small measurements
If they are sensible, they will use those units defined and agreed by the International Standards Organization (ISO), as these will be universally understood and normally are required to be used in scientific publications.
Absolute Magnitude