Mathematical models and computer simulations are used in studying evidence
from many sources in order to form a scientific account of the universe.
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History and Nature of Science: Nature of science Grades 5-8, page 171 Scientists formulate and test their explanations of nature using observation, experiments, and theoretical and mathematical models. Although all scientific ideas are tentative and subject to change and improvement in principle, for most major ideas in science, there is much experimental and observational confirmation. Those ideas are not likely to change greatly in the future. Scientists do and have changed their ideas about nature when they encounter new experimental evidence that does not match their existing explanations. NSES Content Standard A
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