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The Role of Scientific Knowledge in Understanding the Natural World

Explore the different forms of scientific knowledge - theories, laws, models, and hypotheses - and how they contribute to our understanding of the natural world. Learn how models generate ideas to test, hypotheses are testable subsets of models, and theories provide explanations and causes beyond direct observation. Discover the descriptive nature of laws and how theories can help explain their workings.

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The Role of Scientific Knowledge in Understanding the Natural World

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  1. The ultimate goal of science: Defensible explanatory accounts of the way the natural world works.

  2. How do various forms of scientific knowledge contribute to this goal? • Theories • Laws • Models • Hypotheses

  3. Models:generators of ideas to test • The most broadly applied of all forms of knowledge • They are representations of how something is structured or how something works • They are the “testable” subsets of theories • Note! People typically believe models are only the outcome of investigation, but their primary purpose in science is to generate novel and productive ideas to test.

  4. Hypotheses-- Are testable “pieces” of models If, in my current model, _____ is true, then I would expect ____ to happen in my study because________.

  5. Theories= explanation/ cause • Explanations of how some aspect of the natural world works (statements of cause or underlying mechanisms) • They make statements that go beyond what is directly observable

  6. Theories Laws Laws=description • Descriptions of relationships in systems in the natural world • Laws do not offer explanations • Note! Theories never “become” laws, but theories can help explain why laws seem to “work”

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