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independent variable

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Q: What is the variable you use during the part of an experiment that is being tested?
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Continue Learning about Earth Science

What is a control in earth science?

used as an experiment to show that the result of an experiment are a result of conduction being tested.


The group in an experiment that is not exposed to the tested variable is called the group?

An unexposed subject is the "control" for the experiment. The purpose is to establish an idea of what would normally occur outside the testing procedure. Similarly, in human tests, an inactive "placebo" is given to some subjects to verify that the changes occur independently of the psychosomatic (belief-driven) effects. In a "double blind' experiment, the person distributing the medication also does not know whether any particular individual is receiving the actual drug or a placebo. This is hidden in coded form until the results are recorded.


What does independent variable means?

When conducting scientific experiments, the researcher manipulates an "independent variable" (i.e., some physical parameter that can be controlled) in order to measure the effects of such manipulation on a "dependent variable" (i.e., the results of changing the physical parameter of interest). For example, one could lower the temperature in a refrigerator (the temperature being an independent variable) and wait to observe when water left in the refrigerator turns to ice (the change from liquid water to the solid form being the dependent variable). Thus, the change in the dependent variable depends on the manipulation of the independent variable. The independent variable is the variable you change, the dependant variable is what changes as a result of what you change.


What does an oxygen meter measure?

An oxygen meter measures the percentage of oxygen in the air being tested.


Why do fallen leaves not turn blue black on being tested with iodine?

When the leaves fall down the supply of chlorophyll is stopped