Page 10 - E-Science Prim.6 2024-2025 U2_Handy
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Idea of making thermometer
Thermometer contains colored alcohol. Idea of thermometer is to
change the volume of liquid by changing the temperature.
In cold beaker: In hot beaker:
alcohol releases energy, alcohol gains energy,
molecules move slower, molecules move faster,
their spaces increase
their spaces decrease so, they spread and
so, they close and expand to high level of
contract to low level of temperature.
temperature.
Jars
Hot water on the lid of jar
opens it easily as it is made
of metal. Its molecules
spread, spaces between
them increase and expand.
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First Term
