Science Skills

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What is an independent variable in an experiment?

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

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What is a dependent variable in an experiment?

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The dependent variable is the variable that is measured and affected in an experiment, responding to changes in the independent variable.

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What is a control in an experiment?

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A control is a standard of comparison for checking the results of an experiment, ensuring that the test conditions are consistent.

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What is the correct way to record a measurement?

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Measurements should be recorded with the appropriate number of significant figures, such as 38.0 mL.

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What is the first step in the scientific method?

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The first step is to make an observation and ask a question.

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What follows the hypothesis in a scientific investigation?

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The next step is to conduct an experiment to test the hypothesis.

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What is the purpose of analyzing data in a scientific investigation?

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Analyzing data helps to determine whether the results support or refute the hypothesis.

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What does a graph showing population growth indicate?

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It indicates that the population is increasing over time.

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How do you calculate the total production of two entities?

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Add the individual productions together, e.g., Clark's Paper Mill (40) + Tyler Paper Mill (50) = 90 metric tons.

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What is a scientific hypothesis?

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