Scientific Process


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Scientific Process

  1. 1. Observation<br />Information gathered using the 5 senses<br />
  2. 2. Inference<br />A Conclusion made on the basis of facts rather than on direct observations<br />
  3. 3. Hypothesis<br />An “educated statement” that is testable in the natural world<br />Hypotheses are never “proven”<br />They are “supported”<br />Hypotheses are made to be rejected<br />
  4. 4. Qualitative Data<br />Data Described by Certain Qualities<br />Adjectives<br />
  5. 5. Quantitative Data<br />Data That Can Be Measured in Numbers<br />
  6. 6. Independent Variable<br />The variable that the experimenter changes or manipulates<br />
  7. 7. Dependent Variable<br />The variable that the experimenter measures<br />
  8. 8. When to use a bar graph<br />Discrete data – each item is a whole and separate unit (cats and dogs)<br />You can’t really have a cat and a half!!<br />Compare sets of data<br />
  9. 9. When to use a line graph<br />Graphs most commonly used in science<br />they show a relationship<br />Continuous data – the points could theoretically be subdivided<br />Additional points are always possible<br />Graphing over time, temperature, weight<br />
  10. 10.
  11. 11. A Successful Experiment Includes<br />Multiple Trials<br />If using subjects, they are chosen at random<br />Large sample size<br />Tries to remove all bias<br />