the volume of water have no change
Controlled variable ⇒ have nothing done to it. Constant variable ⇒ kept the same Dependent variable ⇒ you observed/measured Independent variable ⇒
changed
Lets take this scenario, you want to find out how the volume of water watered can affect the growth of the bean sprouts .
So you have 2 pots for this experiment, Pot A and Pot B. With Pot A having a usual volume of 50ml
watered every time, and Pot B having a higher than usual volume of 100ml
watered every time.
Independent Variable: The variable that you changed.
- In this case is the volume of water watered .
Dependent Variable: The variable that you observed/measured.
- In this case is the height of the bean sprout .
Constant Variable: The variable that is kept the same throughout the experiment.
-
In this case are:
-
Type of Pots used
- Number of Seeds planted
- Temperature of the surroundings
- Time at which the plants are watered
Of course, there are other variables that should be kept constant, the above 4 are just examples.
Controlled Variable: The variable that have nothing done to it.
- In this case it refers to Pot A , which is the usual pot, no independent variable existed as the volume of water have no change (usual 50ml
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Posted 10 Nov 2017 10:11 AM
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