if something goes wrong they wont get the experiment right so it wont be a controlled experiment
ummm 'cause u need a controlled experiment so the answer is correct and more accurate. People can get different answers and that's experimental value but a scientist need's the answer to be true value. I'm in 6th grade and this is 4 science. (: :P =D
It gives the scientist something to compare their results to.
a scientist will gain valuable experience
manipulated variable
to gather data from data to create an controlled experiment
to gather data from data to create an controlled experiment
The factor a scientist changes in a controlled experiment is called the independent variable. It is the variable that is deliberately manipulated or varied by the scientist to observe its effect on the dependent variable.
pay money to huie
The Independent Variable (I.V.) is what the scientist changes. The Dependent Variable (D.V.) is the outcome of the I.V. There can only be one I.V. in a controlled experiment if you want accurate results
i received this information from wikipedia. http:/en.wikipedia.org/wiki/Experiment hope that helps :)
They make a controlled experiment.
you might not get the experiment correct (: