Scientific Terms

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Vocabulary Word

Independent Variable

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The variable that is changed or controlled in a scientific experiment.

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Dependent Variable

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A variable being tested and measured in a scientific experiment.

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Scientific Law

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A statement based on what will happen under specific conditions in nature

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Scientific Theory

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A statement of an idea that scientists use to understand how something works in the natural world, based on lots of observations and experimentations.

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Hypothesis

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A testable prediction based on prior knowledge points to guide the experiement.

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Control Group

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The group in an experiment that does not receive treatment and is then used as a baseline to measure how others tested.

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Replication

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The action of copying or reproducing the experiment to confirm results.

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Repetition

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The action of repeating the experiment that has already been tested to make sure it is accurate and reliable.