Scientific Method, Variables, & Graphing

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What is the first step of the scientific method?

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The first step of the scientific method is to make observations and ask questions.

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What is a hypothesis?

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

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What is a controlled experiment?

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A controlled experiment is one in which only one variable is changed at a time to isolate its effects.

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What is the independent variable in an experiment?

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The independent variable is the variable that is changed or manipulated by the researcher.

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What is the dependent variable in an experiment?

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The dependent variable is the variable that is measured or observed in response to 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 the results are due to the independent variable and not other factors.

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What is the purpose of graphing data in scientific research?

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Graphing data helps to visualize relationships between variables and identify trends.

Front

What type of graph is best for showing the relationship between two continuous variables?

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A scatter plot is best for showing the relationship between two continuous variables.

Front

What does a line of best fit represent in a graph?

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A line of best fit represents the trend in the data and can be used to make predictions.

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What is the significance of the control group in an experiment?

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The control group serves as a baseline to compare the effects of the independent variable.