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==Key Stage 2==
===Meaning===
'''Freezing''' is when a [[liquid]] turns into a [[solid]].
: [[Verb]]: '''To Freeze'''
: [[Present Participle]]: '''Freezing'''
{| class="wikitable"
|+ When you cool a liquid:
| style="height:20px; width:600px; text-align:left;" |A [[liquid]] will '''freeze''' to become a [[solid]].
|}
===About Freezing===
: A [[liquid]] can '''freeze''' when its gets cold enough.
: '''Freezing''' is a [[Reversible Changes|reversible]] process. When a [[liquid]] '''freezes''' you can always [[Melting|melt]] it back into a [[liquid]].
: You may have seen these liquids '''freeze''':
*Water
*Wax
{| class="wikitable"
|-
|[[File:FrozenWaterfall.png|center|200px]]
|[[File:CandleFreeze.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" |The [[water]] at this waterfall has '''frozen'''.
| style="height:20px; width:200px; text-align:center;" |When the [[liquid]] wax drips down the side of a candle it '''freezes''' because it has cooled down.
|}
==Key Stage 3==
===Meaning===
'''Freezing''' is an [[exothermic]] process in which a [[liquid]] turns into a [[solid]].
===About Freezing===
: '''Freezing''' is a [[Reversible Changes|reversible]] process. When a [[liquid]] '''freezes''' you can always [[Melting|melt]] it back into a [[liquid]].
: You can make a liquid '''freeze''' by cooling it.
{| class="wikitable"
|+ When you cool a [[liquid]]:
|-
|[[File:ParticleModelFreezing.png|center|600px]]
|-
| style="height:20px; width:600px; text-align:left;" |The [[particle]]s in the [[liquid]] slow down until they are slow enough that [[force]]s between the [[particle]]s start to hold them in fixed positions. The [[particle]]s become stuck in fixed positions which makes the [[State of Matter|state]] a [[solid]].
|}
==Key Stage 4==
===Meaning===
[[Freezing]] is an [[exothermic]] [[Physical Change|physical change]] in which a [[liquid]] turns into a [[solid]].
===About Freezing===
: [[Freezing]] happens when the [[particle]]s in a [[liquid]] form [[bond]]s holding them in fixed positions as they lose [[Potential Energy|potential energy]].
: The [[temperature]] at which a [[substance]] '''freezes''' is the same as the [[temperature]] at which it [[melting|melts]] so it is the [[Melting Point|melting point]].
: [[Freezing]] is an [[exothermic]] process, which means it [[emit]]s [[energy]] when it takes place.
: [[Freezing]] is a [[Physical Change|physical change]], which means it is [[Reversible Changes|reversible]] and does not produce new [[chemical]]s.
{| class="wikitable"
|[[File:FreezingGraph.png|center|500px]]
|-
| style="height:20px; width:500px; text-align:left;" |As [[energy]] is removed from the [[liquid]] it '''freezes''' and the [[temperature]] of the [[substance]] stays the same.
|}
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Freezing, page 100, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Freezing, page 102, GCSE Chemistry, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d131 ''Freezing, page 37, GCSE Chemistry; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Freezing, page 72, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''Freezing, pages 100-102, GCSE Combined Science Trilogy; Physics, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Freezing, pages 110-112, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Freezing, pages 324, 328, GCSE Combined Science Trilogy 1, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac200 ''Freezing, pages 39, 40, GCSE Physics; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Freezing, pages 68-9, GCSE Chemistry; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Freezing, pages 88-9, 102, GCSE Physics; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Freezing; energy transfers, page 76, GCSE Physics, Hodder, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Freezing, page 35, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782948147/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948147&linkCode=as2&tag=nrjc-21&linkId=f63dcd8345f4e49c717b39a228a36c7c ''Freezing, page 98, GCSE Chemistry, CGP, Edexcel '']
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Freezing, page 98, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Freezing, page 12, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Freezing, page 76, Gateway GCSE Chemistry, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Freezing, pages 82, 152, 154, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']