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• What is the purpose of inquiry design?
Inquiry/Experimental Design
•is a series of steps used to investigate natural occurrences/phenomena
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What are the steps of the Experimental/Inquiry Design?
1. Observations2. Ask Question/
Define Problem3. Research4. Hypothesis5. Experiment6. Collect Data7. Analysis8. Conclusion/
Follow-Up
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Identify the different types of Observations
• Qualitative-Using the 5 senses– Touch– Smell– Taste– Sight– Hearing
• Quantitative-Anything measurable– Scales– Rulers– Beakers
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• Why is it important to do research and make observations when you identify a problem?
• It is important to conduct research on a problem you have identified so you can find out if someone has already figured out an answer.
• If there is no answer, use the research you find to create a hypothesis.
Identify Problem/Question
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• What is a hypothesis?
• A hypothesis is a possible answer to a question.
• Hypotheses are typically written as an if…then…because statement.
Form a Hypothesis
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How do I write a Hypothesis
• If (restate the problem)
• then (what do you predict will happen)
• because (reasons to support your prediction based on your research)
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How do I write a Hypothesis
• Example: If you study a little every day, then your test scores will be higher because you have taken an active role in your education.
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• What are some important things to include in an experiment?
• It is very important to include a materials list and a detailed procedure when doing an experiment.
• Experiments need to be repeated to verify the results
Experiment
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Differentiate between the different groups used in an experiment.
• Control Group: Used for comparison. All variables are the same as the experimental group EXCEPT the variable you are testing
• Experimental Group: Change one variable to find out if that variable has an effect on the test subject
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• What are the variables in an experiment?
• Independent Variable:
– the variable that can be controlled by the experimenter. It usually includes time (dates, minutes, hours), depth (feet, meters), temperature (Celsius).
– When Graphing; this variable is placed on the X-axis (horizontal axis).
Independent Variables
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• What are the variables in an experiment?
• Dependent Variable:
–the variable that is directly affected by the independent variable.
– When Graphing; this variable is placed on the Y-axis or vertical axis.
Dependent Variables
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• What are the variables in an experiment?
• Controlled Variables:
–EVERYTHING THAT REMAINS CONSTANT IN AN EXPERIMENT.
Variables
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Describe the different types of Variables
Variable - Any factor that can change• Independent: The part of the experiment that
YOU (the experimenter) change (X-axis)
• Dependent: The part of the experiment that you measure (Y-axis)
• Controlled: Parts of the experiment that remain constant in both groups
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• What are trials?
• Trials refer to replicate groups that are exposed to the same conditions in an experiment.
• The greater number of trials increases the validity of the experiment.
Trials
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• How should data be collected? • Collect data throughout the
experiment.• Put data into data tables and/or
graphs. (TAILS)
Collect Data and Analyze Results
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• What should the conclusion consist of?
• The conclusion is a written statement that states whether the hypothesis was accepted or rejected.
• The conclusion should also contain recommendations for further studies or improvements to the procedure.
Conclusion