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Stack #4628937
| Question | Answer |
|---|---|
| Temperature | The average amount of kinetic energy of the particles in a substance. |
| Thermometer | A tool that measures temperature |
| Thermal energy | The total energy of all the particles in an object |
| Heat | Is a flow of energy between two objects at different temperatures |
| Conduction | Transfer of heat energy by molecules touching |
| Convection | heat transfer by a movement of a current |
| Radiation | Transfer of energy by electromagnetic waves |
| Solid | A state of matter in which atoms are closely packed and are difficult to move past each other |
| Liquid | One of the fundamental states of matter, characterized by having a definite volume but no fixed shape |
| Gas | A fundamental state of matter characterized by having no fixed shape or volume, allowing it to expand uniformly to fill any container |
| Melting | The change of a solid to a liquid by absorbing heat |
| Freezing | The change of a liquid to a solid by releasing heat |
| Evaporation | The change of a liquid to a gas by absorbing heat |
| Boiling | The change of a liquid to a gas |
| Condensation | Change by releasing heat |
| Endothermic | Absorbing energy from the environment |
| Exothermic | Release energy to the environment |