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[[File:VisibleSpectrum.png|right|300px|thumb|All the '''colours''' in the rainbow.]]
===Meaning===
'''Colour ''' is something we [[Sight|see]] with our [[Eye|eyes]].
: Singular [[Noun]]: '''Colour'''
===About Colours===
The '''colours''' we can see are red, orange, yellow, green, blue, indigo and violet. If you mix '''colours''' of [[paint]] together you can get another '''colour'''. Red and yellow paint mixed together makes orange. Blue and yellow paint mixed together make green. Blue and red paint mixed together makes purple. If you mix all three you can make brown.
===Examples===
|-
|The sky is blue in '''colour'''.
|I will '''colour''' in [[The Sun]] yellow with [[paint]].
|}
: An [[object]] may appear to have a [[colour]] for three reasons:
:*[[Reflection]] - An [[object]] may [[reflect]] some [[frequency|frequencies]] while [[Absorb (Physics)|absorbing others]].
:*[[Colour Filter|Filtering]] - An [[object]] may be viewed through a [[transparent]] [[medium]] which [[Absorb (Physics)|absorbs]] certain [[frequency|frequencies]] of [[light]].:*[[Scattering]] - An [[object]] may be viewed through a [[transparent]] [[medium]] which [[Scattering|scatters]] certain [[frequency|frequencies]] of [[light]]. This is why the [[sky]] appears blue and the [[Sun]] appears yellow.
===Eyes and Colour===
: Cyan paint [[reflect]]s blue and green [[light]] but [[Absorb (Physics)|absorbs]] red [[light]].
: Yellow paint [[reflect]]s red and green [[light]] but [[Absorb (Physics)|absorbs]] blue [[light]].
|}
: Mixing Magenta and Cyan paints makes a new paint which [[Absorb (Physics)|absorbs]] green [[light]] and red [[light]]. The new paint appears blue because that is the only [[colour]] it [[reflect]]s.
: Magenta > Yellow gives pink.
: Yellow > Magenta gives orange.
{| class="wikitable"
: A [[colour]]ed [[object]] [[Absorb (Physics)|absorbs]] some [[colour]]s and [[reflect]]s others appearing the [[colour]] of the [[reflection|reflected]] [[light]]. For example [[leaf|leaves]] are green because the [[chlorophyll]] inside them [[Absorb (Physics)|absorbs]] red and blue [[light]] but not [[green]].
: When [[colour]]ed [[object]]s are [[mixture|mixed]] such as paint they [[Absorb (Physics)|absorb]] certain [[colour]]s. The more different [[colour]] paints added, the more [[colour]]s they [[Absorb (Physics)|absorb]].
: In [[art]] the focus is on these subtractive primary colours; Magenta, Cyan and Yellow. When [[object]]s with these [[colour]]s are [[mixture|mixed]] the [[object]] will preferentially [[Absorb (Physics)|absorb]] certain [[frequency|frequencies]] of [[light]] allowing only certain [[colour]]s to be [[reflect]]ed.
====Coloured Objects Under Light Coloured Light====
| style="height:20px; width:100px; text-align:center;" |Yellow
|}
===References===
====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 ''Colour, page 226-7, GCSE Physics; Student Book, Collins, AQA '']
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Colour, pages 206-207, GCSE Physics; Third Edition, Oxford University Press, 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 ''Colour, pages 253, 254, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac56 ''Colours, page 85, GCSE Physics; The Revision Guide, 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 ''Filters (colour), page 254, GCSE Physics; The Complete 9-1 Course for AQA, CGP, 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=f0dfb66dafcb0c6e9449e7b1a4ae1ac171 ''Filters (colour), page 85, GCSE Physics; The Revision Guide, CGP, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Colour, pages 68-69, GCSE Physics, Pearson Edexcel '']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Colour, pages 164-165, Gateway GCSE Physics, Oxford, 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 ''Colours; bromine reactions, page 233, Gateway GCSE Chemistry, Oxford, 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 ''Colours; equilibrium position, page 189, Gateway GCSE Chemistry, Oxford, 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 ''Colours; manganite/manganese ions, page 327, Gateway GCSE Chemistry, Oxford, 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 ''Colours; metal hydroxide precipitates, page 149, Gateway GCSE Chemistry, Oxford, 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 ''Colours; silver halide precipitates, page 151, Gateway GCSE Chemistry, Oxford, 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 ''Colours; transition metal compounds, page 141, Gateway GCSE Chemistry, Oxford, OCR '']