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Cel·si·us
 Celsius
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- pronunciation:
- sel
si
 s
| part of speech: |
adjective |
| definition: |
When we use the word Celsius, we are talking about a system people can use when they measure temperature. In most countries of the world, people use this system called Celsius. In America, though, people use a system called Fahrenheit. When you see the letter C after a temperature, as in 22� C, the C stands for Celsius. When it is 22 degrees Celsius outside, the weather feels warm but not hot. It's a nice day to go to the park and play. When it is 22 degrees Fahrenheit, it's quite cold, maybe snowing, and you need a warm jacket.
Using the Celsius system, water becomes ice when its temperature is 0 degrees, and water boils when it is 100 degrees. In the Fahrenheit system, water freezes at 32 degrees, and it boils at 212 degrees.
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