A series of free Science Lessons for 7th Grade and 8th Grade, KS3 and Checkpoint Science in preparation for GCSE and IGCSE Science.
Temperature vs Heat
When the degree of hotness - or temperature - of something goes up, its molecules go faster and it expands. This expansion can therefore be used to measure temperature itself. A device which does this is called a "hotness-meter" or thermometer. On the Celsius scale thermometer, the level to which mercury contracts at the freezing point of water is labelled 0 °C, and the level to which mercury expands at the boiling point of water is labelled 100 °C.
Fool Your Senses
Relative temperature felt by your hands
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