P.S. ch1a vocabulary

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independent variable

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The experimental factor that is manipulated; the variable changed by the scientist.

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dependent variable

Back

The outcome, or response in an experiment. The variable that is measured.

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controlled experiment

Back

An experiment in which only one variable is manipulated at a time.

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constant or controlled variable

Back

Things that must stay the same from trial to trial.

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Hypothesis

Back

An educated guess.

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Conclusion

Back

A judgement based on the information obtained during an experiment.

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Scientific Method

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A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions.

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Data

Back

Facts, figures, and other evidence gathered through observations and experiments.

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observation

Back

Information obtained through the senses.

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inference

Back

A conclusion reached based on observations.