Scientific Method

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What is the Scientific Method?

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A systematic process used for scientific investigation, involving observation, hypothesis formulation, experimentation, and conclusion.

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What is an independent variable?

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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?

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The variable 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 have only one independent variable in an experiment?

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To ensure that any changes in the dependent variable can be directly attributed to the independent variable, making the results valid.

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What is a control group?

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A group in an experiment that does not receive the experimental treatment and is used as a benchmark to measure how the other tested subjects do.

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What is quantitative data?

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Data that can be measured and expressed numerically, such as height, weight, or temperature.

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What is qualitative data?

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Data that describes characteristics or qualities that cannot be measured numerically, such as color, texture, or smell.

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What is a hypothesis?

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

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What is the purpose of a large sample size in experiments?

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To increase the reliability of results by providing more data that can be averaged.

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What is the difference between a theory and a law in science?

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A theory is a well-substantiated explanation of an aspect of the natural world, while a law describes a universal principle that always holds true under specific conditions.