dependent variable
The dependent variable varies due to effects of the factor being tested in a controlled experiment.
They are called "variables", and there are three forms.The dependent variable is the result of the experiment or function.The independent variable is the one that is deliberately changed to observe the effect on the dependent variable.The controlled variables should be maintained constant during the experiment so as not to influence the result.
A control is a duplicate setup of the experiment you are performing with everything identical except for the variable that you are testing. Or, it is how the experiment would happen naturally, without you doing anything. For example, if you are testing the effects of a certain medication on humans, you give half of the subjects the medication and the other half a placebo, which is a sugar pill that has no effect. The latter group is the "control group". Their purpose is to remove the psychological effect of taking the medication from the results of the experiment, so that the only variable remaining is the actual effects of the medication. Constants are things that are kept the same for all trials, like making sure that every subject is taking a pill (and that they believe it is the medication in question, ever if it is only a placebo)
It takes about 30 min --- I don't agree with whoever posted that. I did a science fair experiment and it would take about 15 days in a house, under a lamp. Of course, my results may have been affected by the fact that I used graduated cylinders.
Evaporation is affected by temperature, humidity, surfae area and the presence of wind/a draft.
A dependent variable is something that depends on other factors. It is what gets measured and what is affected during an experiment. Without an independent variable there can be no dependent variable.
The dependent variable
the dependent variable.
Dependent Variable
independent variables :):):):):):):):):):):):)
Where you control the variable factors that involve conducting the experiment.
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The factors that are kept the same in an experiment are the constants.The factors that aren't kept the same in an experiment are the variables.
Environmental factors if you cannot control them.Variable factors if you can control them.See link below for easy explanation:In an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpufIn an experiment the scientist is able to change the independent variable. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she observes what happens. - See more at: http://www.chacha.com/question/what-part-of-an-experiment-is-the-factor-that-you-change#sthash.iyH25Jac.dpuf
for Apex: the variable is an experiment that is manipulated by the scientist.
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