Scientific Method Scientific Method – Process of critical thinking that uses observations and experiments to investigate testable predictions about the.
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Post on 12-Jan-2016
Applying the Scientific MethodScientific MethodScientific Method Process of critical thinking that uses observations and experiments to investigate testable predictions about the physical universe.Steps of the Scientific Method:Observations and questionHypothesizeExperimentObserve and record dataAnalyze and form conclusionsShare results Make ObservationsObservations- Noticing objects or events using the five senses. We use our senses to make observations.SmellSightTouchTasteHearingForm a Hypothesis Based on Observations and QuestionsHypothesis- A testable explanation for observations and questions about the physical universe.When forming a hypothesis use the format.If ___________________ then __________________*A hypothesis should be able to be tested.Develop an experiment to test your hypothesis. Experiment- A test using observations and controlled variables to discover answers to questions, and/or to check a hypothesis. A successful experiment must includeAn Independent variable a factor that is intentionally changed throughout the experiment. (such as weight, temperature, etc.) ChangingA Dependent variable a factor that changes depending on the independent variable and can be measured. (what happens as weight changes, or temperature changes) Depends onA Control- Is the standard that the researcher compares the data too. (what happens when no weight is added or subtracted, or the temperature doesnt change) StandardA Constant factors in an experiment that stay the same. Same During an Experiment You follow a Procedure.Procedure- An ordered series of steps followed to help answer a question.You will observe and record Data.Data- Information, measurements and materials gathered from observations that are used to help answer questions.Data can be either quantitative or qualitative.Analyze the Data to form Conclusions When data is quantitative a graph or diagram can be used to see if the data is accurate or precise.Accuracy all of the data is close to each other.Precision the data is close to your goal.Possible outcomes:Your data is Precise and Accurate (the data supports your hypothesis)Your data is Precise but not Accurate (there is not enough data to support your hypothesis)Your data is Accurate but not Precise (while this might disprove your hypothesis it may point you to another possible hypothesis)Your data is not Accurate or Precise (Something may have went wrong in your experiment) Analyze the Data to form Conclusions When data is qualitative the information is not usually numerical, so it is up for interpretation.Interpret explain the meaning of what you observed using your own words. *In an experiment qualitative data might be observing a reaction ex: smoke, something blowing up etc.Possible outcomes:Your data disproves your Hypothesis. (Supports)Your data fails to disprove your hypothesis (Doesnt Support)
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