Wednesday, February 8, 2012

Is it possible for a science experiment to not have a independent variable?

so were doing and experiment on the specific heat capacity of pewter is it possible that it doesn't have a independent variableIs it possible for a science experiment to not have a independent variable?
Yes it is possible. When a science is young and has no actual theories, simple observation is the only way to experiment. For example the SETI project is in the observational stage, where experiments consist mainly of data collection and analysis. There can be no independent variable until we determine that a dependent variable even exists.

See: http://en.wikipedia.org/wiki/Search_for_鈥?/a>



Another example is string theory (in physics) where they have not yet discovered ways of confirming the theory: no test = no independent variables.

See: http://en.wikipedia.org/wiki/String_theo鈥?/a>Is it possible for a science experiment to not have a independent variable?
If it did not have an independent variable it would not be a valid (useful) experiment.

The point of the the independent variable is that you control this variable and see how it affects another variable (the dependent variable)

In the process you keep as many as possible factors the same for each group (controlled variables) in order to isolate your intended experimental factors.

Please review your basic experiment setup notes :-)Is it possible for a science experiment to not have a independent variable?
no or it wont be any good

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