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===Meaning===
[[File:Thermometer.png|right|300px|thumb|A '''thermometer''' showing the [[temperature]] of the snow was -10°C.]]
A '''thermometer''' is a [[Scientific Instrument|scientific instrument]] piece of equipment used to [[measure]] the [[temperature]] of an object.
: Singular [[Noun]]: '''Thermometer'''
===Examples===
: A [[scientist]] [[Measure|measured]] the [[temperature]] of the snow.
: A [[Doctor]] [[Measure|measured]] the [[temperature]] of their patient.
: A [[scientist]] wants to [[Measure|measure]] the [[temperature]] of the air in the [[laboratory]].
===Used in a Sentence===
: A '''thermometer''' was used to [[measure]] the [[temperature]] of the snow.
: The [[temperature]] of the [[Doctor|doctor's]] patient was found using a '''thermometer'''.
: The [[Scientist|scientist's]] '''thermometer''' showed the [[temperature]] in the [[laboratory]] was 20°C.
==Key Stage 3==
===Meaning===
A [[thermometer]] is a [[Measuring Instrument|measuring instrument]] used to [[measure]] the [[temperature]] of an [[object]].
===About Thermometers===
: [[Thermometer]] usually give the [[temperature]] in [[Degrees Celsius|degrees Celsius]] (°C).
: [[Thermometer]]s are usually made of [[glass]] so caution must be taken when using them so that they do not break.
: Most thermometers have a range of [[temperature]]s they can [[measure]] and some [[temperature]]s they can't. If a [[glass]] [[thermometer]] is placed in a fire it will [[Melting|melt]], so the [[temperature]] of the fire is beyond its range.
: A '''thermometer''' can show a negative [[temperature]] because the [[Degrees Celsius|Celsius]] scale was chosen to have [[water]] [[freezing]] as 0 [[Degrees Celsius|degrees Celsius]]. So anything colder than [[freezing]] [[water]] is given a negative [[temperature]].
==Key Stage 4==
===Meaning===
A [[thermometer]] is a [[Measuring Instrument|measuring instrument]] used to [[measure]] the [[temperature]] of an [[object]].
===About Thermometers===
: [[Thermometer]]s are usually made of [[glass]] so caution must be taken when using them so that they do not break.
: Most thermometers have a [[range]] of [[temperature]]s they can [[measure]] and some [[temperature]]s they can't so the correct [[range]] should be chosen for the [[experiment]].
: A '''thermometer''' can show a negative [[temperature]] because the [[Degrees Celsius|Celsius]] scale was chosen to have [[water]] [[freezing]] as 0 [[Degrees Celsius|degrees Celsius]]. So anything colder than [[freezing]] [[water]] is given a negative [[temperature]].
: The [[resolution]] of a [[thermometer]] may be 1°C or 0.1°C given a small space between the markings or 0.5°C or 0.05°C if those markings are spaced far apart and it can be clearly seen when the [[temperature]] is half way between markings.
: To use a [[thermometer]] [[accurate]]ly:
:*It must not have any bubbles in the [[liquid]] inside. To remove the bubbles the [[thermometer]] may be shaken carefully to more the bubbles without breaking the [[thermometer]].
:*It must be [[calibrate]]d by placing it in a known [[temperature]] and checking it [[reading|reads]] the correct value for example the [[Melting Point|melting point]] or [[Boiling Point|boiling point]] of [[water]].
===References===
====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 ''Thermometers, accuracy and precision of, pages 10, GCSE Combined Science Trilogy 2, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Thermometers, page 126, GCSE Biology; The Revision Guide, 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=9e29fad914244909903e5e93f8a01d259 ''Thermometers, page 18, 108, 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=ad276ad49df77ab4b40ab4fd0fe10357 ''Thermometers, page 233, GCSE Combined Science; The Revision Guide, 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 ''Thermometers, pages 41, 237, 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 ''Thermometers, pages 41, 315, GCSE Chemistry, CGP, 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 ''Thermometers, page 110, 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 ''Thermometers, page 209, 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 ''Thermometers, page 323, GCSE Chemistry, 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 ''Thermometers, page 103, Gateway GCSE Chemistry; The Revision Guide, CGP, 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 ''Thermometers, page 219, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']