Changes

: Make sure not to use the word [[battery]] unless you are talking about many '''electrical cells''' added in [[Series Circuit|series]]. By KS3 students are rarely aware of the distinction between an '''electrical cell''' and a [[battery]] and this problem persists into KS4 causing them to lose marks in their exams. ==Key Stage 3=====Meaning===An '''electrical cell''' is an electrical device that has a [[Chemical Potential Energy Store|chemical potential energy store]] which provides a push for [[electron]]s to flow around a [[circuit]]. ===About Electrical Cells===: An '''electrical cell''' stores energy.: Inside an '''electrical cell''' there are chemicals that react with each other.: An '''electrical cell''' pushes the electricity along the wires when there is a complete circuit. {| class="wikitable"|-|[[File:ElectricalCell.png|center|200px]]|[[File:CellSymbol.png|center|200px]]|-|An '''electrical cell'''.|The symbol for an '''electrical cell'''.|} ==Key Stage 4=====Meaning===[[File:CellSymbol.png|right|300px|thumb|The [[Circuit Symbol|circuit symbol]] for an '''electrical cell'''.]]An '''electrical cell''' is a device capable of storing [[Chemical Potential Energy Store|store chemical potential energy]] which can be transferred by [[electricity|electrically]] to [[Electrical Component|components]] in a [[circuit]]. ===About Electrical Cells===: An '''electrical cell''' is a source of [[Direct Current|direct current]].: '''Electrical cells''' contain a store of [[chemical]]s which can [[Chemical Reaction|react]] to produce a [[Potential Difference|potential difference]].: In an '''electrical cell''' a [[Displacement Reaction|displacement reaction]] occurs between different [[metal]]s. The greater the difference between [[reactivity]] of the [[metal]]s the greater the [[Potential Difference|potential difference]] provided by the '''cell'''.: The [[Chemical Reaction|reaction]] only takes place when there is a complete [[circuit]]. If the [[circuit]] is broken the [[Chemical Reaction|reaction]] will stop.: Once all of the [[reactant]]s have been used, the '''electrical cell''' will stop providing a [[Potential Difference|potential difference]]. ==Beyond the Curriculum=={{#ev:youtube|https://www.youtube.com/watch?v=9OVtk6G2TnQ}}