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USING THE SCIENTIFIC METHOD

USING THE SCIENTIFIC METHOD. Steps in the Scientific Method. State the problem Form a hypothesis Test the hypothesis Analyze your results Draw a conclusion Communicate your results. Step # 1 State the Problem. “ Who has the best hamburger?” Always stated as a question. Make Observations

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USING THE SCIENTIFIC METHOD

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  1. USING THE SCIENTIFICMETHOD

  2. Steps in the Scientific Method • State the problem • Form a hypothesis • Test the hypothesis • Analyze your results • Draw a conclusion • Communicate your results

  3. Step # 1State the Problem • “Who has the best hamburger?” • Always stated as a question

  4. Make Observations • Gather Information

  5. Step # 2 Form a Hypothesis • Hypothesis: a statement that predicts or suggests an answer to a question. • A hypothesis must be TESTABLE.

  6. Step #3 Test the Hypothesis(Conduct an Experiment) • Experiment: a series of carefully planned steps that tests a hypothesis.

  7. Record your findings • Write it down • make tables • create charts

  8. Step #4Analyze the results • Analyzing helps to construct reasonable explanations based on the evidence that you have collected.

  9. Redo your work • Why?

  10. Step #5Draw a Conclusion • Did you prove your hypothesis?

  11. Step # 6Communicate Results • Write a report • Give a talk • Put results on the Internet

  12. Controlled Experiment • Uses a control group andone or more experimental groups.

  13. What is a “factor”? • A factor is any part of an experiment.

  14. A Definition • Control: a part of the experiment that is not being tested and is used for comparison.

  15. A Definition • Constant: a factor that does not change during an experiment.

  16. Variable: anything that can change in an experiment. • You must NAME the variable in your experiment.

  17. Independent Variable • The part of the experiment that is changed by the person doing the experiment.

  18. Dependent Variable • The part of the experiment that is affected by the independent variable.

  19. The Groups: (1) control group & (2) experimental group • All “factors” are the same for both groups except for ONE. • This factor is called the “variable”. • It is the thing being tested. • The experimental group has the “variable”.

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