| A | B |
|---|
| physical properties | the characteristics of a substance that can be observed without changing the basic structure of a substance |
| nonchacteristic properties | chacteristics that can't be used to identify substances |
| chacteristic properties | properties that are unique to a particular substance and can be used to identify that substance |
| mass | the amount of matter in an object |
| weight | the measure of the amount of gravity exerted in an object |
| gravity | a force that pulls 2 objects together because of their masses |
| volume | the amount of space an object takes up |
| density | the mass per unit of volume of a substance |
| phases | different forms in which matter can exist |
| thermal expansion | the increase in the volume of a substance due to an increase in temperature |
| solid | the state in which matter has a definite shape and a definite volume |
| cohesion | the force of attraction between particles of the same kind |
| crystalline solid | a solid whose particles are arranged in a regular, repeating, 3 dimensional pattern |
| amorphous solid | a solid with a random particle arrangement |
| liquid | the state in which matter has a definite volume but not a definite shape |
| diffusion | movement of particles from an area of high concentration to an area of low concentration |
| viscosity | a liquids resistence to flow |
| surface tension | the greater force acting on particles at the surface of a liquid |
