This is a thermometer I bought from Japan. It is called "Galileo's thermometer". This type of thermometer was invented by Galileo.
If the temperature changes, the small colour balls in the thermometer will go up or down. Each ball has a number on it - 18C, 21 C, 24C, 27C and 30C.
When I took this photo, the temperature was about 24C.
2 comments:
How about the situation when the 18C, 21C and 24C balls all dropped to the bottom and the 27C and 30C balls all rose up to the top? What would be the temperature then?
The temperature would be about 25℃ to 26℃.
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