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Scientific Method

Scientific Method. Scientific Method Logical, systematic approach to solve a problem Steps to Sci. Method: Observe Hypothesis Test Hypothesis Develop Theories/Law. Scientific Method. Observation Uses senses obtain info Hypothesis Educated guess Experiment

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Scientific Method

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  1. Scientific Method

  2. Scientific Method • Logical, systematic approach to solve a problem • Steps to Sci. Method: • Observe • Hypothesis • Test Hypothesis • Develop Theories/Law Scientific Method

  3. Observation • Uses senses obtain info • Hypothesis • Educated guess • Experiment • Procedure that is used to test hypothesis Scientific Method

  4. Variable • Factor being tested • Independent variable • What is directly changed • The “If” part of an “If…then” statement • Always think…it is what Ichanged • Hint: Try to find I.V. 1st & then the others • Dependent variable • What is indirectly changed • The “then” part of an “If…then” statement • Constant • Remains the same throughout the entire exp. • Control Group • What happens under normal conditions • To ID – look for the groups resulting from I.V. and choose 1 • Experimental Group • What happens when 1 variable is changed Parts of and Experiment

  5. Theory • Well-tested explanation (gives the why) • NEVER proven • i.e. Big Bang Theory • Law • Summary of results (gives the what) • PROVEN • Mathematical relationship • If one increases the temp., the volume of the container increases • i.e. Law of Conservation of Mass – Matter can neither be created nor destroyed. Theory/Law

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