| A | B |
|---|
| Matter | anything that takes up space and has mass |
| Solid | matter which has a definite shape and volume (neither shape nor volume conform to its container) |
| Liquid | matter which has a definite volume but no definite shape (maintains its volume, but takes the shape of the container) |
| Viscosity | liquid’s resistance to flow |
| Surface Tension | uneven forces acting on the particles on the surface of a liquid |
| Gas | matter that does not have a definite shape or volume (takes the share and volume of its container) |
| Thermal Energy | the total kinetic and potential energy of all of the particles in a sample of matter |
| Temperature | the average kinetic energy (energy of motion) in a sample of matter |
| Heat | the movement of thermal energy from a substance at a higher temperature to one at a lower temperature |
| Melting | the change from the solid state to the liquid state |
| Freezing | the change from the liquid state to the solid state |
| Vaporization | the change from a liquid to a gas |
| Condensation | the change from a gas to a liquid |
| Density | mass divided by volume |
