why do scientists use models why do scientists use the scientific method why do scientists use the metric system why do scientists use a common system of measurement why do scientists use scientific notation why do scientists use scientific models why do scientists use diagrams why do scientists use models to study atoms why do scientists use scientific names why do scientists use microscopes why do scientists use binomial nomenclature why do scientists use punnett squares why do scientists use graphs why do scientists use dichotomous keys why do scientists use tables and graphs why do scientists use pedigree charts why do scientists use electron microscopes why do scientists use rats for experiments why do scientists use punnett squares site 1 why do computer scientists use hexadecimal how and why do scientists use models explain why scientists use significant digits