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Sci Meth Intro Audio
 

Sci Meth Intro Audio

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My take on the scientific method. Used for 6th to 9th grade.

My take on the scientific method. Used for 6th to 9th grade.

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    Sci Meth Intro Audio Sci Meth Intro Audio Presentation Transcript

    • The Scientific Method
      • http://www.virtualsciencefair.org/2004/mart4m0/public_html/process2.jpg
    • 1. Define the Problem
          • Based on observations & form a question
          • Collect existing info
    • 2. Form a Hypothesis
      • a. A testable explanation to the problem
      • b. Cannot be accepted until supported by a large number of tests
      • c. May need to be revised or dismissed
    • 3. Design a Controlled Experiment
      • a. Set up to test hypothesis
      • b. Must test only one condition
      • c. All conditions are alike except for the variable
    • Controlled Exp cont’d
      • 1. (Experimental) Variable : the one factor being tested
      • 2. Two Groups: same conditions except for variable
      • a) Control Group : not exposed to variable
      • b) Experimental Group : exposed to variable
    • 4. Observations
      • 1. record qualitative and quantitative data
    • 5. Conclusion
      • 1. data has value when a valid conclusion can be drawn
      • 2. Theory : a hypothesis supported by many different exp/long period of time
    • Observation  Problem Hypothesis Controlled Experiment Results Conclusion Publication/Theory Reject & Revise Hypothesis Other scientists exp & repeat Additional Hypothesis
    • Example
      • Let’s say you are out fishing. The fish aren’t biting for you, but another guy has them jumping into his boat…
    • Testing…
      • So, you find out what bait he’s using, and you switch to it… <Good>
      • Then you move your boat… <Bad>
        • Why is this bad?