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science
| Question | Answer |
|---|---|
| states of matter | gas solid and liquid |
| kinetic particle theory | all matter is made up of tiny particles and are in constant random motion |
| kenetic energy | particles of matter in constant motion |
| melting point | temperature at which a solid becomes a liquid |
| melting | solid to a liquid |
| freezing | liquid to a solid |
| heating curve | shows how the temperature of a solid changes as it is heated |
| freezing poiint | point at which liquid becomes a solid |
| cooling curve | shows how temp. of a liquid changes as it freezes |
| boiling | from a liquid to a gas |
| boiling point | temp. at which liquid boils to become a gas |
| evaporation | particles esape as a gas from the surface of a liquid |
| volatile liquid | liquids that evaporate at room tmp. |
| condensation | when gas is cooled it changes into a liquid |
| sblimation | change into a gas with out going though liquid state |
| diffusion | the process by which particles move freely to fill up any available space. the movement of particles from a region of higher concentration to a region of lower concentration |
| molecular mass | mass of gas particles |