| A | B |
|---|
| Absolute Zero | The point at which all matter stops moving. |
| Annual Temperature Range | Determined by computing the differences between the warmest and coldest months mean temperatures. |
| Bimetal Strip | Thermometer consisting of two metal strips that will continuously record temperature. |
| Celsius | A scale with a decimal system using 0° as the freezing point of water. |
| Controls of Temperature | Factors that cause changes in temperature for place to place and time to time. |
| Cooling Degree-Days | The practical method for calculating how much cooling energy is needed. |
| Daily Mean Temperature | Determined by averaging the 24 hour reading |
| Daily Temperature Range | Finding the difference between the Maximum and Minimum temperature of the day. |
| Fahrenheit | German scale using 32° as the freezing point of water |
| Fixed Points | The established reference scales of temperature. |
| Growing Degree-Days | A method for figuring out when a crop can be harvested calculated by taking the mean temperature from the minimum temperature of that crop to grow. |
| Heating Degree-Days | The practical method for calculating how much heat energy is needed. |
| Isotherm | A line that connects points on a map of similar temperature. |
| Kelvin | A scale using Celsius scale but has an absolute 0 and 273 as the freezing point of water. |
| Liquid in Glass Thermometer | The expansion of a liquid can be calculated and measured as it moves through the graduations. |
| Maximum Thermometer | Uses mercury and a constriction point to find the highest temperature of the day. |
| Minimum Thermometer | Uses alcohol and a dumbbell to find the lowest temperature of the day. |
| Monthly Mean Temperature | Determined by adding all the daily means for the month and dividing by the number of days in that month. |
| Specific Heat | The amount of heat need to raise the temperature of 1 gram of a substance 1°C. |
| Temperature Gradient | The amount of temperature change per unit of distance. |
| Thermistor | An electric thermometer that resists the flow of electricity based on the temperature. |
| Thermograph | An instrument that continuously creates a record of the daily temperature changes usually with the use of a bimetal strip. |
| Thermometers | Instrument used to measure temperature. |
