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If you test only one variable then you know that the difference in the experimental and control setup is that one independent variable. If you test more than one you will not know which one made the difference.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoIf more than one variable is used in an experiment, it would be impossible to tell which variable was the variable that caused the reaction.
For example, if someone was testing how to make plants grow quickly... should they try to test light exposure, water given, and fertilizer used at the same time, they would never be able to figure out if watering the proper amount of times (rather than too much or not enough), leaving it in sunlight (as opposed to darkness or artificial lighting), or the fertilizer used was the variable that caused the plant to grow the most. Besides, there would be too many test subjects to keep track of, so some might be forgotten and wither away.
I hope this explains things.
Wiki User
∙ 11y agoIt's really important to test one variable during the experiment because if you take more than one variable, then the results could have been affected by multiple things. Thisbmakes the experiment useless because you want to find what ONE change does to the experiment
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What does it mean to control the variables in an experiment?
Controls are the things you leave the same when you do an experiment. Variables are the things you affect in an experiment to see if it makes a difference. It depends on the experiment how you would "control" the variable.
How many variables can be tested in an experiment?
1
What two groups are involved in an experiment?
To draw valid conclusions from an experiment, there must be two kinds of conditions observed: 1. An experimental condition (the particular manipulation of a variable being studied), and 2. A control condition (the situation that unfolds without manipulating the variable being studied). Only comparing these two conditions will enable one to know that the factors changed by experiment are what led to the results of the experiment. For example, if you apply heat to water in order to produce steam (an experimental condition), you must also have some water that is not heated (a control condition) so you can be assured that water does not convert to steam simply because time passes without heat. In the social sciences, wherein it is common to study groups of people, the experimental and control conditions may be referred to as separate groups.
Benjamin Franklin was one of the first people to experiment with what?
haha is this from a school called k12 anyway he was the first to experiment with electricity
What was Ben Franklin experiment?
The kite experiment was a scientific experiment
What is an experiment in which only one variable is manipulated variable at a time?
Controlled Experiment :Pcontrolled experiment.
What is an experiment in which only one variable is changed is a?
a controlled experiment
An experiment in which only one Variable is manipulated at a time?
Controlled experiment
What dose variable mean in science?
A variable is an element in an experiment that you control. There should only be one variable in an experiment or the results will not be accurate.
What is an experiment in which only one variable is manipulated at a time?
Controlled Experiment :Pcontrolled experiment.
Why does the investigator in an experiment change only one variable?
the investigator only changes one variable in an experiment because they need to see how that one variable reacts. if you wanted to see how the dependent variable changed but changed the independent variable you would not see how the one variable reacts.
What type of experiment is one which only one variable at a time is changed?
a controlled experiment
What type of experiment is one in which only one variable at a time is changed?
a controlled experiment
Why does an investigator change only one variable in an experiment?
So the variable can be at constant.
An experiment the has only one changed factor is which type of an experiment?
Indpendent variable
How many variables should have an experiment?
A experiment should only have one variable.
What type of experiment is on in which only one variable at a time is changed?
a controlled experiment
