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edits
Changes
→Key Stage 3
: A cyan [[object]] appears blue.
: A magenta [[object]] appears magenta.
|}
==Key Stage 4==
===Meaning===
[[Colour]] is a [[property]] of [[object]]s that we can [[Sight|see]].
===About Colour===
White [[light]] can be divided into 7 [[colour]]s:
*Red
*Orange
*Yellow
*Green
*Blue
*Indigo
*Violet
: Red [[light]] has the lowest [[frequency]] and the longest [[wavelength]].
: Violet [[light]] has the highest [[frequency]] and the shortest [[wavelength]].
===Colour and Reflection===
{| class="wikitable"
|-
|[[File:RedObjectColour.png|center|300px]]
|[[File:BlueObjectColour.png|center|300px]]
|-
| style="height:20px; width:200px; text-align:center;" |A red [[object]] [[reflection|reflects]] red [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
| style="height:20px; width:200px; text-align:center;" |A blue [[object]] [[reflection|reflects]] blue [[light]] but [[Absorb (physics)|absorbs]] all the others '''colours'''.
|}
: [[Colour]] exists because [[object]]s [[Absorb (Physics)|absorb]] some [[frequency|frequencies]] of [[light]] while other [[colour]]s are not.
: A [[colour]]ed [[object]] [[Absorb (Physics)|absorbs]] some [[colour]]s and [[reflect]]s others. For example [[leaf|leaves]] are green because the [[chlorophyll]] inside them [[Absorb (Physics)|absorbs]] red and blue [[light]] but not [[green]].
===Eyes and Colour===
: The [[human]] [[eyes]] only have three different '''colour''' sensing [[Cell (Biology)|cells]] called [[Cone (Biology)|cones]]. They can detect; red, green or blue light. All other '''colours''' we see are caused by a pair of different [[Cone (Biology)|cones]] detecting [[light]] at the same time.
: If the red [[Cone (Biology)|cones]] and blue [[Cone (Biology)|cones]] both detect [[light]] then we see [[magenta]].
: If the red [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[yellow]].
: If the blue [[Cone (Biology)|cones]] and green [[Cone (Biology)|cones]] both detect [[light]] then we see [[cyan]].
===Coloured Mixing===
{| class="wikitable"
|-
|[[File:ColourMixing.png|center|500px]]
|-
| style="height:20px; width:200px; text-align:center;" |
: Magenta can be made by mixing red and blue [[light]].
: Yellow can be made by mixing red and green [[light]].
: Cyan can be made by mixing blue and green [[light]].
: White can be made by mixing red, blue and green [[light]].
|}
{| class="wikitable"
|-
| style="height:20px; width:200px; text-align:center;" |'''Light Colour'''
| style="height:20px; width:100px; text-align:center;" |'''Object Colour'''
| style="height:20px; width:100px; text-align:center;" |'''Appearance'''
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Red
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Blue
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Green
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Magenta
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Magenta
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Cyan
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Blue
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Cyan
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:200px; text-align:center;" rowspan = "6"|Yellow
| style="height:20px; width:100px; text-align:center;" |Red
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:100px; text-align:center;" |Blue
| style="height:20px; width:100px; text-align:center;" |Black
|-
| style="height:20px; width:100px; text-align:center;" |Green
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:100px; text-align:center;" |Magenta
| style="height:20px; width:100px; text-align:center;" |Red
|-
| style="height:20px; width:100px; text-align:center;" |Cyan
| style="height:20px; width:100px; text-align:center;" |Green
|-
| style="height:20px; width:100px; text-align:center;" |Yellow
| style="height:20px; width:100px; text-align:center;" |Yellow
|}