Monday, January 18, 2010

Need help identifying the independent and dependent variable and the control in this experiment?

The experiment is ';Do plants grow better under sunlight, artificial light or no light?';


I have no idea what the independent and dependent variable and the control is.


Please help!


BEST ANSWER 10 PTS!


Thanks in advance


:DNeed help identifying the independent and dependent variable and the control in this experiment?
Independent variable: Real, artificial, and no sunlight.


Dependent variable: If the plants grow better.





Control group would be the group with the no sunlight.





Independent variable is the thing that you can control. In this case, it's the sunlight.





Dependent variable is something you can measure. In this case, you can measure the growth of the plant.





Control refers to the control group. Control group is the group that is not exposed to any independent variables. Therefore, the group with no sunlight is the control group.





Cheers!Need help identifying the independent and dependent variable and the control in this experiment?
Independent: Type of light


Dependent: Plant growth


Control: You want to test that the plants aren't simply defective if they don't grow, so I would put sunlight since that's their natural light source, but I'm really not sure about this one.
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