Matching Pairs Atoms FlaschcardsOnline version Vocabulary - Atoms by Benjamin D Morgan 1 Nucleus 2 Neutron 3 Stabilize 4 Electron 5 Outermost Energy Level 6 Matter 7 Independent (manipulated) variable 8 Controlled Variable 9 Energy Levels 10 Dependent (responding) Variable 11 Proton 12 Atom 13 Ion The variable that we change in an experiment. The "cause" The variable that is kept the same during the experiment OTHERWISE they might effect the results The variable that we measure in an experiment (the effect)