Which part of an experiment has no manipulation of the independent variable?

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Study for the Earth Science Standards of Learning Test. Use flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your exam efficiently!

Multiple Choice

Which part of an experiment has no manipulation of the independent variable?

Explanation:
The key idea is that the independent variable is the factor you deliberately change to see its effect, while the dependent variable is what you measure. The part of an experiment that has no manipulation of the independent variable is the control. The control is set up exactly like the experimental conditions except that the independent variable is not applied, providing a baseline so you can tell whether any observed changes are due to the manipulation itself. Keeping other factors constant across all groups helps ensure that differences come from the independent variable alone.

The key idea is that the independent variable is the factor you deliberately change to see its effect, while the dependent variable is what you measure. The part of an experiment that has no manipulation of the independent variable is the control. The control is set up exactly like the experimental conditions except that the independent variable is not applied, providing a baseline so you can tell whether any observed changes are due to the manipulation itself. Keeping other factors constant across all groups helps ensure that differences come from the independent variable alone.

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