Thursday, December 15, 2011

What is the Independent Variable and Control in my Science Experiment?

My experiment is : Will oil affect the growth of aquatic plants?





I will have two identical setups with marine plants in each tank, but I am adding oil to one bowl and seeing how it affects it compared to the other.


Thank you!|||independent: amount of oil


dependent: growth of plants


control group: plants in tank without oil


experimental group: group that has oil in tanks.


constants: amount of water, same type of tanks, same type of plants, same amount of food, same sized plants, water is at the same temperature|||Independent variable is the amount of oil you add.



Dependent variable is whatever is affected by the oil (whatever you are testing for).



The control is the bowl that you aren't adding oil to.|||Your controlled variable are the things that are the same : smae plants, same tank, same soil same water.





Your independent is the amount of oil or lack thereof.

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