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Definitions (24)
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conclusion
The solution or answer to a problem. The conclusion is what the scientist has learned about the problem through experimentation.
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controlled variable
A variable that must remain the same in all situations. Controlled variables are all of the things in an experiment that must remain the same.
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data
Pieces of information that a scientist will gather and look at. Data consists of information collected through research, experiments, and observations. Conclusions can be made based on data.
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data table
A T-shaped diagram that displays raw data from an experiment. It includes a manipulated and responding variable.
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experiment
A test or trial used to gain knowledge or to test a theory.
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graph
A diagram consisting of lines, bars, or circles to represent information. Science fair experiments usually require line graphs.
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hypothesis
A reasonable or educated guess. It is what a scientist thinks will happen in an experiment. Hypotheses are based on observations, research, and what is already known about the subject.
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log book
A notebook in which a scientist writes all of his or her notes about the experiment. All students who complete a science fair project must have a log book.
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manipulated variable
A variable that is deliberately or intentionally changed by the scientist in an experiment.
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