Scientific Method

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Scientific Method
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Problem/Purpose

• State the problem in the form of a question that
  includes the independent and dependent variable

• (Will a hard boiled egg float in salt water?)

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• Educated guess to solving the problem that
  includes the independent and dependent variables.

• Hypothesis

• If the independent variable increases or
  decreases, then the dependent variable will
  increase or decrease.

• If the amount of salt added to the water
  increases, then the hard boiled egg will float)

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independent

• Variables

• Parts of the experiment

dependent
constant
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• Independent (I.V.)

• The scientist (you) change on purpose.

• (amount of salt)

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• Dependent (D.V.)

• The response from the change made to the
  independent variable.

• Results

• (float or not float)

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• Constant (C.V.)

• The item that does not change at all. It stays
  the same

Same beakers, same amount of water, same type of
salt, Same spoon, same classroom.

• Control

• No variable is applied to the item

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• Experiment

• Design an experiment to test your problem using
  the three (3) types of variables
• (test 3 times for accuracy)

constant independent dependent
no change amount of salt float or not float
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Record Findings

• Data Table

• Make a data table showing your results

• Graph

• Make a graph to visually show your results.

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• Restate your hypothesis with the results from
  your experiment

• Conclusion

• Should be at least 3 paragraphs for formal
  experiments.