Unit 1 Review: Charac. of Life & Scientific Method

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What is the dependent variable in an experiment?

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The dependent variable is the variable that is measured or observed in an experiment, which changes in response to the independent variable.

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What is the independent variable in an experiment?

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The independent variable is the variable that is deliberately changed or manipulated by the scientist to observe its effect on the dependent variable.

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What is a control variable?

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A control variable is a factor that is kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the independent variable.

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Define the scientific method.

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The scientific method is a systematic process used for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge, typically involving observation, hypothesis formulation, experimentation, and conclusion.

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What is growth in single-celled organisms?

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For single-celled organisms, growth is mostly an increase in size.

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What is development in multicellular organisms?

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Development in multicellular organisms is the process where cells divide and differentiate into different kinds of cells.

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What is the purpose of a hypothesis in an experiment?

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A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

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

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The control group is used as a benchmark to compare the results of the experimental group, ensuring that the effect of the independent variable can be isolated.

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How does one identify the dependent variable in an experiment?

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The dependent variable can be identified by asking what is being measured or observed in response to changes in the independent variable.

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What is an example of an independent variable in a plant growth experiment?

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An example of an independent variable in a plant growth experiment could be the amount of sunlight the plants receive.