Experimental Design

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Experimental Design
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Experimental Design

• Scientists use experiments to determine cause and
  effect relationships.
• They change certain things to get different
  results.
• To find solutions for diseases.

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Independent

• Variables that change according to experiment.
• There is only one independent variable in an
  experiment.
• Question 1 How does the brand of food affect a
  dogs health?

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Dependent

• Changes in response to the independent variable.
• what you measure in the experiment.
• Question 2 How does the amount of fertilizer
  affect plant growth?

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Constant

• Something that the scientist wants to keep the
  same to not change.
• So it does not give a false result for
  experiment.
• Question 3 How does the height of the ramp
  affect the distance the car travels?

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Questions?

• Question 4 Can you give me an experiment that
  includes independent and a dependent variable?
  (You must use affect in this answer).
• Question 5 Can you give me two constants that
  can apply to your experiment?

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Conclusion

• To figure out all of the info you have gathered.
• Organize data in order to graph it.
• Find out how the manipulated variable affected
  the dependent variable in the long run.

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