Controlled variables – The variables that scientists keep the same during an experiment to make sure that a test is fair. Dependant variables – The variable that a scientist measures or observes.

Independent Variables- changes in the experiment that are controlled by the experimenter (for example, having one researcher face away while the other faces the grape).

Full factorial DOE, or Design of Experiments, is a method of designed experimentation. Using this method you manipulate the ...

Sorting by the second CONTROL variable continues to alternate between ascending and descending sorting throughout all levels of the first CONTROL variable. If there is a third CONTROL variable, the ...

To conduct a valid experiment, variables need to be identified and controlled. Summary. Students will help design an experiment to see if adding energy (heating) affects the rate of evaporation.

In this activity, students will be able to identify and control variables to design an experiment to see whether the temperature of a solvent affects the speed at which a solute dissolves. Students ...