Temperature and States of Matter

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Temperature and States of Matter
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Measuring Temperature Using States Of Matter
COLD
WARM
HOT
Solids can turn into liquids, and liquids can
turn into gasses and back again - depending on
the temperature. So, we can use the effect of
heat on states of matter to measure the
temperature of something.
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Using Gasses To Measure The Temperature
VERY COLD
HOT
For example, a balloon filled with air shrinks as
it gets cold, and expands as it gets hot. This
is a very sensitive way of measuring temperature
BUT its not very accurate because the size of a
balloon also depends on other things like air
pressure!
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Using Liquids To Measure The Temperature
Liquids are less sensitive to temperature changes
but are better than gasses they are hardly
effected by air pressure! Which is why we use
coloured alcohol or mercury in most thermometers!