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What is an antibiotic?

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A substance that kills or inhibits the growth of bacteria.

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What does antibiotic resistance mean?

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When bacteria evolve and become immune to the effects of antibiotics, making infections harder to treat.

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What is a testable question?

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A question that can be answered through experimentation and observation.

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What is the dependent variable in an experiment?

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The variable that is measured or observed in response to changes in the independent variable.

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What is the independent variable in an experiment?

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The variable that is changed or controlled to test its effects on the dependent variable.

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What is a hypothesis?

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A proposed explanation or prediction that can be tested through experimentation.

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What is a control group in an experiment?

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A group that does not receive the experimental treatment and is used for comparison.

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Why is it important to have a control in an experiment?

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To ensure that the results are due to the independent variable and not other factors.

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What is the scientific method?

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A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is the role of salt in plant growth?

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Excess salt can inhibit plant growth by affecting water absorption and nutrient uptake.