Scientific method acc 2011
Transcript of Scientific method acc 2011
Steps of the Steps of the Scientific MethodScientific Method
February 6, 2015February 6, 2015
ObjectivesObjectives
1.1. Recognize the Steps of the Scientific Recognize the Steps of the Scientific MethodMethod
2.2. Understand the terminology that is Understand the terminology that is involvedinvolved
3.3. Use an example problem to work Use an example problem to work through each of the Stepsthrough each of the Steps
The The Scientific Scientific MethodMethod involves a involves a series of steps that series of steps that
are used to are used to investigate a investigate a
natural natural occurrence. occurrence.
Problem/QuestionProblem/Question
Observation/ResearchObservation/Research
Formulate a HypothesisFormulate a Hypothesis
ExperimentExperiment
Collect and Analyze ResultsCollect and Analyze Results
ConclusionConclusion
Communicate the ResultsCommunicate the Results
Steps of the Steps of the Scientific MethodScientific Method
1.1. Problem/QuestionProblem/Question: : Develop a question or problem that Develop a question or problem that can be solved through can be solved through experimentation.experimentation.
Steps of the Steps of the Scientific MethodScientific Method
2. 2. Observation/ResearchObservation/Research: :
Make observations and research your Make observations and research your topic of interest.topic of interest.
Steps of the Steps of the Scientific MethodScientific Method
3. 3. Formulate a HypothesisFormulate a Hypothesis: :
Predict a possible answer to the Predict a possible answer to the problem or question. If/thanproblem or question. If/than
Example:Example: If If soil temperaturessoil temperatures rise, then rise, then plant growthplant growth will increase. will increase.
Steps of the Steps of the Scientific MethodScientific Method
4.4. ExperimentExperiment: : Develop and/or follow a Develop and/or follow a procedureprocedure..
Include a detailed Include a detailed materialsmaterials list. list.
The outcome must be measurable The outcome must be measurable (quantifiable).(quantifiable).
Include tables, graphs, and Include tables, graphs, and photographs.photographs.
VariablesVariablesIndependentIndependent
a factor that’s a factor that’s varied (changed, varied (changed, experimental) by experimental) by the the experimenter.experimenter.
DependentDependent
the factor that the factor that may change may change (measuring) as a (measuring) as a result of changes result of changes made in the made in the independent independent variable.variable.
Control GroupControl Group standard of comparison.standard of comparison. may be a “no treatment" or an may be a “no treatment" or an
“experimenter selected” group.“experimenter selected” group.
exposed to the same conditions as the exposed to the same conditions as the experimental groupexperimental group except for the variable being tested.except for the variable being tested.
ConstantsConstants
factors that the factors that the
experimenter attempts experimenter attempts to keep the same. to keep the same.
Steps of the Steps of the Scientific MethodScientific Method
5. 5. Collect and Analyze ResultsCollect and Analyze Results: : Use data to support hypothesisUse data to support hypothesis
Modify the procedure if needed.Modify the procedure if needed. Make recommendations for further study and Make recommendations for further study and
possible improvements to the procedure.possible improvements to the procedure.
Steps of the Steps of the Scientific MethodScientific Method
6. 6. ConclusionConclusion: :
Include a statement that accepts or Include a statement that accepts or rejects the hypothesis.rejects the hypothesis.
Steps of the Steps of the Scientific MethodScientific Method
7. 7. Communicate the ResultsCommunicate the Results: :
Be prepared to present the project to Be prepared to present the project to an audience.an audience.
Expect questions from the audience. Expect questions from the audience.