Scientific Method, Theory and Law T2 2425

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What is the scientific method?

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A process used by scientists to solve a problem or answer a question.

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What is a scientific theory?

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An explanation a scientist makes about a natural phenomenon that has been tested multiple times by many different scientists.

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What is the independent variable in an experiment?

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The one thing in the experiment that you choose to change.

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What is a hypothesis?

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A statement about what you will change (independent variable) and what you will watch and measure (dependent variable); often called an educated guess.

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What are controlled variables?

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Factors in an experiment that are kept the same to ensure a fair test.

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What is a scientific law?

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A statement that describes a consistent and universal relationship observed in nature.

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What is the difference between a hypothesis and a theory?

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A hypothesis is a testable prediction, while a theory is a well-substantiated explanation based on a body of evidence.

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What role does data collection play in the scientific method?

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Data collection is essential for testing hypotheses and drawing conclusions.

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

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To provide a baseline for comparison against the experimental group.

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How do scientists ensure their experiments are valid?

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By controlling variables, repeating experiments, and peer reviewing their findings.