Types of science investigations

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Types of science investigations

  1. 1. Types of ScienceInvestigationsNew Science TEKS
  2. 2. Types of Investigations• Descriptive• Comparative• Experimental
  3. 3. Descriptive Investigations• Investigations used when scientists describe something quantitatively and/or qualitatively • Research question • Description of procedures • Data collection, display and analysis • Conclusion/Explanation
  4. 4. Descriptive Investigation:• Involves describing and/or quantifying parts of a natural or man made system. • Quantitative Data • Qualitative Data
  5. 5. Comparative Investigations• Investigations used when scientists compare two or more groups on one variable to determine the strength of correlation • Research question • Description of procedures • Hypothesis • Independent variable • Dependent variable • Controlled all of the variables except the independent • Data collection, display and analysis • Conclusions/explanation
  6. 6. Comparative Investigation:• Involves collecting data on different organisms/objects/features, or collecting data under different conditions (e.g., times of the year, temperatures, locations) to make a comparison.
  7. 7. Experimental Investigations• Investigations used by scientists when they compare an experimental group to a control group • Research question • Description of procedures • Hypothesis • Independent variable • Dependent variable • Controlled all of the variables except the independent • Control group • Data collection, display and analysis • Conclusions/explanation
  8. 8. Experimental Investigations• Investigations used by scientists when they compare an experimental group to a control group • Research question • Description of procedures • Hypothesis • Independent variable • Dependent variable • Controlled all of the variables except the independent • Control group • Data collection, display and analysis • Conclusions/explanation

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