19,879
edits
Changes
no edit summary
: Changing more than one [[variable]] in an [[experiment]] makes it impossible to tell which [[variable]] caused the [[result]]s.
: [[Control Variable]]s ensure that only the [[Independent Variable]] could be responsible for a change in the [[Dependent Variable]].
: [[Control Variable]]s make sure an [[experiment]] is a [[Fair Test|fair test]].
==Key Stage 4==
: Changing more than one [[variable]] in an [[experiment]] makes it impossible to tell which [[variable]] caused the [[result]]s.
: [[Control Variable]]s ensure that only the [[Independent Variable]] could be responsible for a change in the [[Dependent Variable]].
: [[Control Variable]]s make sure an [[experiment]] is a [[Fair Test|fair test]] and that the [[results]] are [[valid]].