| A | B |
|---|
| Celsius | Basic unit in the metric system for measuring temperature. Degree Celsius are represented mathematically as "C" |
| Degrees | equal divisions of units of temperature |
| Fahrenheit | basic unit in the English system for measuring temperature. Degrees Fahrenheit are represented mathematically as "F" |
| Heat | The energy transferred frm one molecule to another because of a difference in kinetic energy between the two molecules. |
| Kinetic energy | The energy of motion |
| Molecule | A particle of matter |
| Temperature | A measure of the kinetic energy of molecules |
| Thermometer | A scientific tool that measures temperature in degrees Celsius ( C) and degrees Fahrenheit (F) |
| Conduction | The process of transferring heat from one material to another by direct contact of one molecule to another. Conduction occurs between solids, between solids and liquids and between solids and gases. |
| Conductor | A material that transfers heat easily |
| Convection | The process of heat transfer through liquids and gases. |
| Insulator | A material that does not transfer heat easily or slows the transfer of heat. |
| Radiation | The process of transferring heat from an object through electromagnetic waves such as light, ultraviolet waves and infrared waves. Radiation can occur through gases and in a vacuum. |
| Rate of heat transfer | how quickly heat is transferred. It is also described as the change in temperature over a specific time period. |
| Chemical reaction | The process in which one or more substances interact chemically to form one or more different substances. |
| Endothermic process | A chemical reaction or physical change that absorbs heat. |
| Exothermic process | A chemical reaction or physical change that releases heat |
| Law of Conservation of Energy | Energy is neither created nor destroyed, it simply changes form. |
| Physical change | A change in which no new substance is produced but the original substance changes form. |
| Evaporation | the process by which liquid water becomes water vapor ( a gas) |
| Joule-Thompson Effect | The degree in temperature observed when a compressed gas is allowed to expand rapidly |
| Surface Area | All of the outside surfaces of an object |
