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→Key Stage 4
: The [[Earth]] is a [[magnet]] as evidenced by a [[Compass|magnetic compass]] lining up North to South everywhere on [[Earth]].
: All [[magnet]]s have a [[Magnetic Field|magnetic field]] around them which influences other [[Magnetic Material|magnetic materials]].
: A [[magnet]] is made of several small [[Magnetic Domain|magnetic domains]] which are regions in the [[magnet]] which act as smaller [[magnet]]s.
{| class="wikitable"
|-
|[[File:MagneticDomainsAligned.png|center|300px]]
|[[File:MagneticDomainsUnaligned.png|center|300px]]
|-
| style="height:20px; width:200px; text-align:center;" |When [[Magnetic Domain|magnetic domains]] are aligned the [[object]] has an external [[Magnetic Field|magnetic field]] so it acts like a [[magnet]].
| style="height:20px; width:200px; text-align:center;" |When the [[Magnetic Domain|magnetic domains]] are not aligned there is no external [[Magnetic Field|magnetic field]] because the effect of the [[Magnetic Domain|magnetic domains]] cancels out.
|}
===Examples===