Parts of an Experiment

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What is an independent variable in an experiment?

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

Tags

NGSS.MS-PS2-2

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What is a dependent variable in an experiment?

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The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

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Why is it important to control variables in an experiment?

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Controlling variables is important to ensure that any changes in the dependent variable are due to the manipulation of the independent variable, allowing for accurate conclusions.

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How many independent variables should be tested in a controlled experiment?

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Only one independent variable should be tested at a time in a controlled experiment.

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What is a controlled experiment?

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A controlled experiment is a scientific test where one variable is changed while all others are kept constant to isolate the effects of the independent variable.

Tags

NGSS.MS-PS1-2

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What is the purpose of an experiment?

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The purpose of an experiment is to test a hypothesis by manipulating variables and observing the outcomes.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

Front

What is a hypothesis?

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A hypothesis is a testable prediction about the relationship between two or more variables.

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What is the role of a control group in an experiment?

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The control group serves as a baseline to compare the effects of the independent variable, helping to validate the results.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).

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What is a variable in the context of an experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

Tags

NGSS.MS-PS3-4