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There’s more than one �scientific method

  • not to be a rigid procedure
  • cyclical way to describe the job done by scientists

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Science Investigations

1-3 Introduction to Biology

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Parts of a Science Experiment

  • Hypothesis
  • Variables; Independent and Dependent
  • Constants & Control Group

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Hypothesis

Proposed answer to a science question

  • Must be observable
  • Inductive (from observations)
  • Deductive (from theory or law)

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Variables in Science Experiments

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Constants v. Control Groups

Constant Variables; factors that are exactly the same for all test subjects�Control Groups; the comparison (placebo in medicine) that does not receive the treatment�

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