Scientific Design and Characteristics of Life

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What is an independent variable in an experiment?

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The independent variable is the factor 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 factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

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What is a control group in an experiment?

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

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What does it mean for a plant to respond to a stimulus?

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Response to stimulus refers to how living organisms react to changes in their environment, such as a plant bending toward sunlight.

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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 the purpose of a hypothesis in scientific research?

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

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What is the role of replication in scientific experiments?

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Replication involves repeating an experiment to confirm the results and ensure reliability.

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What is the significance of controlled variables in an experiment?

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Controlled variables are factors that are kept constant to ensure that any changes in the dependent variable are due to the independent variable.

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What is photosynthesis?

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Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.