How to remember the 7 steps of the scientific method
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Transcript of How to remember the 7 steps of the scientific method
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How to remember the 7 Steps of the Scientific Method
“People Really Hate Elephants On Compact Cars.”
The picture will help you remember the steps!
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How to remember the 7 Steps of the Scientific Method
1. Problem – The “thing” that you want to know. The question you want to answer.
2. Research - Information about the problem. What is already known?
3. Hypothesis - Educated guess, or prediction of the outcome of the experiment. This guess can be tested by performing an experiment.
4. Experiment- Tests the hypothesis.
5. Observations - Data you collect during the experiment.
6. Conclusions - Determine if the hypothesis is correct or not.
7. Communicate - Present your results in a talk or a paper.
“People Really Hate Elephants On Compact Cars.”
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Example of the Seven Steps
1. Problem: Do mice grow larger if given Vitamin C?2. Research: Learn about mice, their diet and vitamin C.3. Hypothesis: If mice are given vitamin C then they will
grow larger4. Experiment: Two groups of mice – one gets vitamin C,
one does not5. Observation: Weigh mice after 2 weeks – both groups
are the same size6. Conclusion: Hypothesis is not correct (rejected)7. Communicate: Present your results
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Identify the variables
• Manipulated or Independent Variable (IV)?– Get Vitamin C or no Vitamin C
• Responding or Dependent Variable (DV)?– Weight of mice
• Control Group-treated “normally”– Mice with no Vitamin C
• Experimental Group (IV is changed for this group)– Mice with Vitamin C
• Constants (controlled variables)– Same mice (genetically identical), same food (except for Vitamin C), same weight scale, same cage conditions, same time frame..
• Conclusion– Accept or Reject the Hypothesis