Nature of Science and Investigations

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What is an independent variable?

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The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

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What is a dependent variable?

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The dependent variable is the factor that is measured or observed in an experiment.

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What is an experiment?

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An experiment is a special type of scientific investigation that is performed under controlled conditions.

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What is an inference?

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An inference is an explanation that uses observations to draw conclusions.

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How many variables should be changed in a simple experiment?

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In a simple experiment, only 1 variable should be changed.

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What is a control group?

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A control group is a group in an experiment that does not receive the treatment and is used for comparison.

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What is a hypothesis?

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A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

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What is the purpose of a scientific investigation?

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The purpose of a scientific investigation is to answer questions and learn more about the world.

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What does it mean to observe?

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To observe means to watch carefully and notice details about something.

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What is data?

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Data is information collected during an experiment that can be analyzed.