| A | B |
|---|
| solid | defintie shape, definite volume |
| crystalline solid | regular, repeating patterns |
| amorphous solid | gets soft before melting |
| liquid | indefinite shape, definite volume |
| fluid | any substance which flows |
| viscosity | resistance of a liquid to flowing |
| gas | indefinite shape, indefinite volume |
| temperature | average kinetic energy of particles |
| pressure | force divided by area |
| vary inversely | relationship of volume to pressure |
| directly proportional | relationship of temp. to pressure |
| physical change | alters form of substance only |
| chemical change | makes a new substance |
| thermal energy | total energy of the particles |
| vaporization | change from liquid to gas |
| sublimation | change from solid to gas |
| condensation | change from gas to liquid |
| melting | change from solid to liquid |
| freezing | change from liquid to solid |
| evaporation | vaporization only at surface |
| chemical energy | holds molecules together |
| volume | space a substance occupies |
| boiling | vaporization throughout the liquid |
