Scientific Method review

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What is a hypothesis?

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A hypothesis is a testable statement that predicts the relationship between variables, often formulated as an 'if-then' statement.

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What is the purpose of a controlled experiment?

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The purpose of a controlled experiment is to isolate and test a single variable while keeping other variables constant.

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What must be done for the results of an experiment to be considered valid?

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The experiment must be repeated numerous times, and the same results must be obtained.

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What is qualitative data?

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Qualitative data is descriptive data that can be observed but not measured, often represented in words.

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What is quantitative data?

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Quantitative data is numerical data that can be measured and expressed in numbers.

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What equipment is best for observing small living aquatic organisms?

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A compound light microscope is best for observing small living aquatic organisms.

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What is the scientific method?

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The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is an independent variable?

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An 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?

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A dependent variable is the variable that is measured and affected in an experiment.

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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 as a benchmark to measure how the other tested subjects do.