| A | B |
|---|
| Solid | has a definite volume and a definite shape |
| Crystalline Solid | patterns that create crystals |
| Melting Point | the temperature at which a substance changes from a solid to a liquid. |
| Amorphous Solid | a solid made up of particles that are not arranged in a regular pattern |
| Liquid | a state of matter that has a definite volume but no definite shape |
| Viscosity | the resistance of a liquid to flowing |
| Gas | a state of matter with no definite shape or volume |
| Temperature | the measure of the average kinetic energy of the particles in a substance |
| Pressure | : the force exerted on a surface divided by the total area over which the force is exerted; also the force of a gas's outward push divided by the area of the walls of the container. |
| Boyle's Law | the relationship between the pressure and volume of a gas at constant temperature; when volume increases, pressure decreases |
| Charles's Law | the relationship between the temperature and volume of a gas at constant pressure; when temperature increases, volume increases |
| Graph | a diagram that shows how two variables are related |
| Directly Proportional | the relationship between two variables whose graph is a straight line passing through the point (0,0). |
| Vary Inversely | the relationship between two variables whose graph forms a curve that slopes downward from left to right |
| Thermal Energy | the energy that the particles of a substance have |
| Melting | the change in state from a solid to a liquid |
| Freezing | the change of state from liquid to solid |
| Vaporization | the change from liquid water into water vapor |
| Evaporation | takes place only on the surface of a liquid |
| Boiling | takes place inside a liquid as well as at the surface |
| Condensation | gas particles lose enough thermal energy to become a liquid |
| Sublimation | surface particles of a solid gain enough energy to become a gas |
