The SCIENTIFIC METHOD. Definition Scientific method - steps used by scientists to solve a problem.

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Presentation transcript:

The SCIENTIFIC METHOD

Definition Scientific method - steps used by scientists to solve a problem

1.STATE THE PROBLEM Problem should be objective and testable. Usually comes about by initial observations. Cow Experiment: ______________________________________________

2.RESEARCH THE PROBLEM. Books, internet, people, etc. CE: ___________________________________________ 3.FORM A HYPOTHESIS. Testable prediction/educated guess in the form of a statement. CE: ___________________________________________

4.CONDUCT AN EXPERIMENT. Parts of the experiment: - control group – the group that is NOT subjected to what is being tested (comparison group) CE: _______________________________________________________________ - experimental group – the group that is subjected to what is being tested CE: _______________________________________________________________

Variables – things that may change during an experiment –Independent variable – the one thing YOU are doing different between the 2 groups CE: ________________________________________________________ –Dependent variable – what you will measure or observe as a result of doing the experiment CE: ________________________________________________________ Magic question: How does _______________ affect _____________? IVDV

Constants – things that remain the same between the 2 groups CE: ___________________________________________________________

5.RECORD AND ORGANIZE DATA. Data can be qualitative or quantitative. Organize into tables, charts, or graphs. CE: ___________________________________________________________

6.ANALYZE DATA What do the data mean? CE: ___________________________________________________________________ 7.DRAW CONCLUSIONS Was your hypothesis supported or disproved? Were there any errors? CE: _____________________________________________________

8.REPORT FINDINGS CE: ______________________________________________________

THINGS TO CONSIDER ABOUT EXPERIMENTS: -Did they have a large enough sample size? -Do they test only one thing at a time? -Did they use a control group? -Are the results repeatable? (  theories  laws) -Can the results be interpreted differently (“alternate interpretation or explanation”)

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