GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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none
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one
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two
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three
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Detailed explanation-1: -Yes, an experiment should test only one variable at a time. This ensures that the experimental outcome is clearly due to one identifiable factor.
Detailed explanation-2: -Answer and Explanation: You can have as many independent variables in an experiment, as you want, but you would like to design your experiments to have only one independent variable if it is possible. This is because it allows you to determine whether your independent variable influences your dependent variable.
Detailed explanation-3: -Answer and Explanation: There can only be one independent variable in a scientific experiment and many control variables to clarify what is acting on the dependent variable.
Detailed explanation-4: -To ensure a fair test, a good experimental inquiry only has one independent variable and that variable should be something that can be measured quantitatively. For example, experimental inquiries about plants may include such independent variables as: Volume of water given to plants.