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Scientific Method1

TermDefinition
OPHEAC Six Steps of the Scientific Method. (Observations, Problem, Hypothesis, Experiment, Analysis, Conclusion)
Scientific Method A series of steps used to solve a problem.
Observations Information that you obtain through your senses.
Qualitative Observations that you specifically use your senses to observe the results.
Quantitative Observations that are made with instruments such as rulers, balances, graduated cylinders, beakers, and thermometers. These results are measureable.
Problem What you are trying to find out. Must be phrased in the form of a question.
Hypothesis A prediction or an educated guess. If… then… (because…) statement to show the cause and effect relationship. Must be specific. Must be measurable.
Experiment An organized procedure for testing a hypothesis.
Data All information gathered during an experiment.
Control Group A group or a standard used for comparison. The group that does NOT have the experiment tested on it.
Constants The parts of an experiment that are the same for ALL groups.
Variables The parts of an experiment that change.
Independent Variable (Manipulated Variable) Factor that is intentionally changed. What(I)the scientist does.CAUSE.
Dependent Variable (Responding Variable) Factor that is changed as a result of the experiment. EFFECT. What we MEASURE at the END of the experiment.
Experimental Group A group of subjects that are exposed to the variable of a control experiment.
Analysis Organizing data into charts & graphs & drawing conclusions from gathered data.
Conclusion A statement about whether or not the data supports your hypothesis and why or why not.
Scientific Theories Well-tested explanations for a set of observations or experimental results.
Scientific Laws Describe an observed pattern in nature and a law is accepted as TRUE.
Scientific Models Ideas that scientists used to explain patterns they observe in the world that describe phenomena too difficult to observe directly. Must be able to explain, predict, and be consistent with other knowledge.
Pure Research Seeks to gain knowledge for the sake of knowledge itself.
Applied Research Research undertaken to solve a specific problem.
Technology The practical use of scientific information.
Created by: mnhelgesen
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