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Tom's younger brother is learning how to read a thermometer and asks, 'Why does the red stuff in the thermometer go up when it gets hot outside?' What is a correct explanation that Tom can give to his brother?

Sagot :


that's because it have a molecuole that are sensitive in hot materials or things so it get risen
Malixviz
it has a molecules that sensitive on hot or cold to know how hot it  is or how cold it is.