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Steps of the Scientific Method
• State the Problem
• Gather Data
• State Hypothesis
• Test the Hypothesis
• Conclusion
STATE the HYPOTHESIS
• A statement of a probable solution to your problem.
• This is an
“if- then” statement.
Experimentation• To test the hypothesis,
an experiment is performed.
• An experiment has two parts, the control and the variable.
Parts of the experiment
Control• The part of the
experiment that does not change.
Variable• The part of the
experiment that changes.
• You only have ONE variable.
Observation• Observations are recorded facts about what
you see.–vs. inference
• There are two types of
observations.
–Quantitative
–Qualitative
Observation
Quantitative• Results in a numerical form,
with a unit.
Qualitative• Results in a descriptive form.
Types of Properties
• Extensive Property – depends on the amount of matter.
• Examples: volume, mass, amount of energy in a substance.
• Intensive Property – DOES NOT depend on the amount of matter.
• Examples: density, heat and electricity conduction, boiling point, etc.
CONCLUSION
• A brief statement about the results of the experiment(s).
• Communicates what was found.
• States whether the hypothesis was correct or incorrect.