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The constant is the thing you keep the same because that is what yo are checking, this can be both good and/or bad. The variables are the things that are being measured withinthe experiment. Hope this helped and good luck getting a good grade on whateverit is you needed this for!
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What happens when you change the variables?
If you change the variables in a science experiment, you will probably get different results.
Why is it important to have a constant in an experiment?
In order for the results to be valid, the dependent variable can only be affected by the independent variable, so somethings need to be kept CONSTANT. The things that need to be kept constant are called CONTROLLED VARIABLES. Even if controlled variables are affecting the dependent variable(s), which they usually do, keeping them constant will ensure that all trials of an investigation were equally impacted by the controlled variables, therefore allowing one to see the impact of an independent variable on the dependent variable. All in all, a 'constant' in a science experiment should actually be called a 'controlled variable' and the description of such a variable is described in the third point. Hope this clarifies.
What is difference between scientific and unscientific method of research?
scientific is science and unscientific method is not scientific
Science Fair Projects involving Dependent and independent variables.?
egg expiriment
Can a variable be a constant?
In algebra variables express a relationship within an equation and these are often used to give meaningful expressions to represent practical situations. These relationships often require a constant to be included in order to balance the equation turning the relationship from one of proportionality to one of equality. The variables themselves are only constant for a given set of conditions. i.e The voltage across a resistance of 60 ohms carrying a current of 4 amps will be 240v. (V= current x resistance). A separate constant is not needed in this case as the resistance is defined by the other two properties. In science one example of a constant that is thought to be variable is the speed of light, which for all practical purposes is considered to be constant but is thought to have changed gradually with time. I don't know what possible ways there are of verifying this.
