A change wich occurs because of the independent variable.
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a independent variable is a variable changed in a science experiment,and a dependent variable is the result according to the cause of the change in the independent variable.
A fixed variable is the thing that stays the same, such as the amount of water.
The independent variable (such as time) is places on the x-axis of a graph. Always place the things that will never change on the x-axis. The dependent variable is then placed on the y-axis. The difference between the independent and dependent variable is that the independent variable in an experient does not change it is what stays constent, it is what is used to measure the dependent variable. On the other hand the dependent variable is what the experiment is testing for and what depends on the independent variable.
Oh, dude, the dependent variable in the egg in a bottle experiment is the volume of air inside the bottle. It's like the thing that changes based on what you do to the egg and the bottle. So, if the egg gets sucked into the bottle, it's because of that variable, not because the egg wanted to take a vacation in there.
The dependent variable depends on the independent variable for its values as for example in the straight line equation: y = 2x+1 It is y that is the dependent variable and x the independent variable.