vocabulary for temperature , heat and heat technology
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| 290992201 | temperature | a measure of how hot or cold something is: specifically a measure of the average kinetic energy of the particles in an object | 0 | |
| 290992202 | thermal expansion | The increase in volume of a substance due to an increase in temperature | 1 | |
| 290992203 | absolute zero | The coldest temperature, 0 Kelvin, that can be reached. It is the hypothetical temperature at which all molecular motion stops. | 2 | |
| 290992204 | kinetic energy | the energy an object has due to its motion | 3 | |
| 290992205 | Celsius | Metric unit for measuring temperature; On this scale water freezes at zero and boils at 100. | 4 | |
| 290992206 | Fahrenheit | a temperature scale with the freezing point of water 32 degrees and the boiling point of 212 degrees | 5 | |
| 290992207 | Kelvin | SI unit of temperature; indicates number of units above absolute zero. To go from Celsius to Kelvin add 273. To go from Kelvin to Celsius subtract 273. | 6 | |
| 290992208 | expansion joints | space between solid objects like sidewalk slabs that allow room for expansion (when heated) and contraction (when cooled) | 7 | |
| 290992209 | thermostat | a device used to control the temperature | 8 | |
| 290992210 | bimetalic strip | a strip made of two different metals that expand at different rates | 9 | |
| 290992211 | hot-air balloon | rises because the thermal expansion of heated air reduces the density of the balloon | 10 | |
| 290992212 | heat | energy transferred between objects that are at different temperatures | 11 | |
| 290992213 | thermal energy | the kinetic energy of a substance's atoms | 12 | |
| 290992214 | convection | the transfer of thermal energy by the circulation or movement of a liquid or gas | 13 | |
| 290992215 | radiation | the transfer of energy as electromagnetic waves | 14 | |
| 290992216 | specific heat | the heat (energy) required to raise the temperature of one gram of a substance one degree centigrade | 15 | |
| 290992217 | thermal conductor | a material through which energy can be transferred as heat | 16 | |
| 290992218 | thermal insulator | a material that reduces or prevents the transfer of heat | 17 | |
| 290992219 | conduction | the transfer of thermal energy from one substance to another through direct contact | 18 | |
| 290992220 | state of matter | a physical property that describes matter as a solid, liquid, or gas | 19 | |
| 290992221 | change of state | physical change of a substance from one state to another; solid>liquid, liquid> solid; gas>liquid, liquid>gas. | 20 | |
| 290992222 | calorimeter | a device used to determine a the specific heat capacity of a substance | 21 | |
| 290992223 | solid | object that has a fixed shape and volume | 22 | |
| 290992224 | liquid | a substance in the fluid state of matter having no fixed shape but a fixed volume | 23 | |
| 290992225 | gas | a fluid in the gaseous state having no fixed shape nor volume | 24 | |
| 290992226 | chemical change | a change that produces matter with a different composition than the original matter | 25 | |
| 290992227 | insulation | a material that reduces or prevents the transmission of heat (or sound or electricity) | 26 | |
| 290992228 | heat engine | a machine that transforms heat into mechanical energy, or work | 27 | |
| 290992229 | passive solar heating | the use of sunlight to heat buildings directly | 28 | |
| 290992230 | combustion | a process in which a substance reacts with oxygen to give heat and light | 29 | |
| 290992231 | compressor | a mechanical device that compresses gasses | 30 | |
| 290992232 | refrigerant | a substance used to provide cooling (as in a refrigerator) | 31 |
