Two ==Key Stage 2=====Meaning===A [[mixture]] is when two or more different substances that found [[substance]]s are in the same place or are part of the same [[object]]. : Singular [[Noun]]: '''Mixture''': Plural [[Noun]]: '''Mixtures''': [[Verb]]: '''To mix''' ===About Mixtures===: Many [[material]]s are [[mixture]]s of different [[substance]]s.: [[Mixture]]s can usually be [[Separating Mixtures|separated]], but sometimes it is very difficult to do.: '''Mixing''' is [[Reversible Changes|reversible change]]. Once two substances are '''mixed''' they can usually be separated again. ===Examples==={| class="wikitable"|-| style="height:20px; width:200px; text-align:center;" |Sea Water| style="height:20px; width:200px; text-align:center;" |Muddy Puddle| style="height:20px; width:200px; text-align:center;" |Beach|-|[[File:Sea.png|center|200px]]|[[File:MuddyPuddle.png|center|200px]]|[[File:PebblesandSand.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |Seawater is [[mixture]] of [[salt]] and [[water]].| style="height:20px; width:200px; text-align:center;" |This puddle is a [[mixture]] of mud and [[water]].| style="height:20px; width:200px; text-align:center;" |The beach is a [[mixture]] of sand and pebbles.|} ==Key Stage 3=====Meaning===A [[mixture]] is a [[substance]] which contains more than one type of [[chemical]]. ===About Mixtures===: A [[mixture]] can be made of different [[element]]s or it can be made of different [[compound]]s.: The different [[chemical]]s in a [[mixture]] are not [[Chemical Bond|chemically bonded]] to with each other.: [[Mixture]]s can be [[Separating Mixtures|separated]] without a [[Chemical Reaction|chemical reaction]]. ===Examples==={| class="wikitable"|-|[[File:ElementMixture1.png|center|200px]]|[[File:ElementMixture2.png|center|200px]]|[[File:ElementMixture4.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of two different [[element]]s.| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of two [[molecule|molecular]] [[element]]s.| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of three different [[element]]s.|-|[[File:CompoundMixture.png|center|200px]]|[[File:CompoundElementMixture1.png|center|200px]]|[[File:CompoundElementMixture2.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of two [[compound]]s.| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of a [[compound]] and an [[element]].| style="height:20px; width:200px; text-align:center;" |A [[mixture]] of a [[compound]] and an [[element]].|} ==Key Stage 4=====Meaning===A [[mixture]] is a [[substance]] which contains more than one type of [[chemical]]. ===About Mixtures===: [[Mixture]]s can be made of different [[element]]s, [[compound]]s or both.: A [[mixture]] of [[metal]] [[element]]s is called an [[alloy]].: [[Mixture]]s can be [[Separating Mixtures|separated]] by non-chemical processes. ===Formulations===: A useful [[mixture]] may be referred to as a [[formulation]]. This is a [[mixture]] which combines the useful [[property|properties]] of several [[chemical]]s in the [[mixture]].Some examples of [[formulation]]s are:*Surface Cleaner - Contains [[bleach]] to kill [[bacteria]], a fragrance to give it a pleasant smell and a surfactant to [[Emulsification|emulsify]] oils.*Paint - A [[dye]] to provide colour and a [[solvent]] for it to be spread over a surface.*Heartburn Relief - A [[base]] to [[Neutralisation|neutralise]] [[Stomach Acid|stomach acid]], alginic [[acid]] to form a layer to protect the lining of the [[stomach]] and [[oesophagus]]. ===References=======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 ''Mixture, pages 12, 18-19, 262-5, GCSE Chemistry; Student Book, Collins, 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 ''Mixture; separation, pages 18-9, GCSE Chemistry; Student Book, Collins, 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=9e29fad914244909903e5e93f8a01d185 ''Mixtures, page 16-18, GCSE Chemistry; The Revision Guide, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10084 ''Mixtures, pages 100-103, 150, GCSE Combined Science; The Revision Guide, 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 ''Mixtures, pages 136-7, GCSE Combined Science Trilogy 1, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Mixtures, pages 155, GCSE Combined Science Trilogy 2, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures, pages 21-2, 203, GCSE Chemistry, Hodder, 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 ''Mixtures, pages 34-41, GCSE Chemistry, CGP, 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 ''Mixtures, pages 34-41, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Mixtures, pages 8-9, 148-149, 180-181, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures; formulations, page 204, GCSE Chemistry, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Mixtures; Formulations, pages 156, GCSE Combined Science Trilogy 2, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Mixtures; Melting and boiling points, pages 155-6, GCSE Combined Science Trilogy 2, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures; melting and boiling points, pages 203-4, GCSE Chemistry, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures; rock salt, pages 25, GCSE Chemistry, Hodder, 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 ''Mixtures; separation of, pages 137-40, GCSE Combined Science Trilogy 1, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures; separation of, pages 22-5, GCSE Chemistry, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Mixtures; uses of, pages 203-4, GCSE Chemistry, 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 ''Mixtures, page 36, GCSE Chemistry; The Revision Guide, 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 ''Mixtures, page 99, GCSE Combined Science; 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 ''Mixtures, pages 100, 101, GCSE Chemistry, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Mixtures, pages 148-149, GCSE Combined Science, Pearson Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Mixtures, pages 4-5, GCSE Chemistry, Pearson, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Mixtures; separation, page 10, GCSE Chemistry, Pearson, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Mixtures; separation, page 154, GCSE Combined Science, Pearson 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 ''Mixtures, pages 26-29, 78, 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 ''Mixtures, pages 40-49, 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 ''Mixtures, pages 98-103, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']