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| style="height:20px; width:600px; text-align:left;" |The [[particle]]s in the [[liquid]] move faster until they are moving fast enough that they break the [[bond]]s holding the [[particle]]s together. The [[particle]]s become free to move anywhere which makes the [[State of Matter|state]] a [[gas]].
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==Key Stage 4==
===Meaning===
[[Evaporating]] is an [[endothermic]] [[Physical Change|physical change]] in which the [[particle]]s on the surface of a [[liquid]] are able to escape the [[liquid]] to become part of a gas.
===About Evaporating===
'''Evaporating''' is different from [[boiling]] because:
#'''Evaporation''' happens from the surface of the [[liquid]].
#'''Evaporation''' can happen at [[temperature]]s below the [[Boiling Point|boiling point]] of the [[liquid]].
: [[Evaporating]] happens when some [[particle]]s at the surface of a [[liquid]] have enough [[energy]] to escape the [[bond]]s holding the [[particle]]s together in the [[liquid]].
: '''Evaporation''' is an [[endothermic]] process, which means it needs to [[Absorb (Physics)|absorb]] [[energy]] to take place. When [[liquid]]s '''evaporate''' the [[temperature]] of the [[liquid]] decreases as the [[energy]] is taken away by the [[particle]]s escaping the [[liquid]].
: [[Evaporating]] is a [[Physical Change|physical change]], which means it is [[Reversible Changes|reversible]] and does not produce new [[chemical]]s.