Temperature

Temperature is a measure of how hot or cold something is. It is an important concept in science and everyday life. In the metric system, temperature is measured in degrees Celsius (°C) or Kelvin (K), while in the United States and some other countries, it is measured in degrees Fahrenheit (°F).

Converting Between Fahrenheit and Celsius

To convert from Fahrenheit to Celsius, you can use the formula:

Celsius = (Fahrenheit - 32) * 5/9

To convert from Celsius to Fahrenheit, you can use the formula:

Fahrenheit = (Celsius * 9/5) + 32

Temperature Scales

The Celsius scale is based on the freezing and boiling points of water, with 0°C being the freezing point and 100°C being the boiling point at sea level. The Fahrenheit scale is also based on the freezing and boiling points of water, with 32°F being the freezing point and 212°F being the boiling point at sea level. The Kelvin scale is an absolute temperature scale with 0K representing absolute zero, the lowest possible temperature.

Measuring Temperature

Temperature can be measured using thermometers, which contain a temperature-sensitive substance, such as mercury, that expands and contracts with changes in temperature. Digital thermometers use electronic sensors to measure temperature and display the results on a screen.

Study Guide

1. What are the two main temperature scales used in the world?
2. How do you convert from Celsius to Fahrenheit?
3. What is absolute zero, and which temperature scale is based on it?
4. How is temperature measured using a thermometer?

[Temperature] Related Worksheets and Study Guides:

• TemperatureMathematics • Third Grade