Celsius

Celsius is a way of measuring how hot or cold something is. It's like asking if it's hot or cold outside, but with numbers.

Imagine a thermometer, a long skinny stick with numbers on it. When it's really hot outside, the red line on the thermometer moves up to a high number, like 30, 35 or even 40 Celsius. When it's really cold, the red line moves down to a low number, like minus 5 or minus 10 Celsius.

The Celsius scale was invented by a man named Anders Celsius. He decided that the boiling point of water (when it turns into steam) is 100 degrees Celsius, and the freezing point of water (when it turns into ice) is 0 degrees Celsius. So everything in between those two points is measured using Celsius.

It's important to know the Celsius scale because it helps us know how to dress appropriately for the weather. When it's really hot outside, we might wear shorts and a t-shirt. But when it's really cold, we might wear a warm coat, hat, and gloves.

So remember, Celsius is a way of measuring temperature using numbers, and it helps us know how hot or cold something is so we can be prepared for the weather.