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NIS - BIOLOGY

NIS - BIOLOGY. Lecture 1 The Nature of Science and the Scientific Method Ozgur Unal. The Nature of Science. Science is a process that uses observation and investigation to gain knowledge about the events in nature . Science : What does come to your mind ?.

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NIS - BIOLOGY

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  1. NIS - BIOLOGY Lecture 1 TheNature of ScienceandtheScientificMethod OzgurUnal

  2. TheNature of Science • Science is a processthatusesobservationandinvestigationtogainknowledgeabouttheevents in nature. Science: Whatdoescometoyourmind? • Observation:Act of gatheringinformation • Inferences:Drawingconclusionsfromobservations • Investigation:Includesobserving, experimenting, modelling

  3. TheScientificMethod ScientificMethod

  4. TheScientificMethod Hypothesis: An educatedguess Experiment: A wayto test hypothesis Collect data Analyze data Drawconclusions Serendipity? • Experimentsincludevariables: • Dependentvariables • Independentvariables • Constants

  5. TheScientificMethod Question: Howdoesthethickness of theseedcoataffectthegermination rate of theseeds? Hypothesis? • Ifthethickness of thecoating is smaller, theseedsgerminatefaster. • Design an experimenttotestyourhypothesis: • A seedwithscratchedcoat • A seedwith a hole in thecoat (nicked) • A seedwith an unscratchedcoat

  6. TheScientificMethod Coatingthickness Germination rate Temperature, amount of sunlight, wateretc. Identifyvariables: Independentvariable: Dependentvariable: Constant: • Control: Theseedwith normal coatingis usedtocomparethegrowthrates.

  7. TheScientificMethod Performtheexperiment, collectandrecordyour data: • Drawconclusions: ?? • Shareyourresults: Communicate

  8. TheScientificMethod - Summary

  9. TheScientificMethod Astronomy vs Astrology Whichone is a science? Why?

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