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It depends on the experiment. Normally only one is tested at a time because they can affect the experiment. Variables are tested in a controlled experiment to see whether they affect the outcome and also how.
It depends on the factors which affect the result of the particular experiment. Time and temperature are among the most commonly used variables used in many experiments.
In a properly designed experiment, it is important to have at least 2 controlled variables. With two variables you are able to remove one at a time and see the effect in your setup.
flasks, broth, time, location, time, temperature.
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1000150
It depends on the experiment. Normally only one is tested at a time because they can affect the experiment. Variables are tested in a controlled experiment to see whether they affect the outcome and also how.
It depends on the factors which affect the result of the particular experiment. Time and temperature are among the most commonly used variables used in many experiments.
Just one at a time
They shouldn't, ever. It defies the whole point of a controlled experiment.
In a properly designed experiment, it is important to have at least 2 controlled variables. With two variables you are able to remove one at a time and see the effect in your setup.
flasks, broth, time, location, time, temperature.
Variables are the different thing in the experiment. Ex.-Problem-Which ball rolls fastest? Hypothesis-The Softball will roll fastest. Investigation-Roll the balls at the same time and time them with a stopwatch. Conclusion-Basketball rolled the fastest. Variables-The balls.
It can have as many as it needs. You can even change different variables at the same time and study their individual influence with proper statistical tools in many type of experiments.
You can only change ONE at a time. That's what makes it controlled. It's the only sure way to know what actually changed the experiment.
The variables in the Naked Egg Experiment include the type of solution used to dissolve the eggshell, the duration of time the egg is left in the solution, the temperature at which the experiment is conducted, and any additional materials or substances added to the solution. These variables can affect the rate and extent of eggshell dissolution, as well as the overall outcome of the experiment.