| A | B |
| condensation | change from a gas to a liquid |
| crystal | particles arranged in geometric patterns |
| evaporation | changing from a liquid to a gas |
| heat of fusion | amount of heat needed to change a solid to a liquid |
| heat of vaporization | amount of heat needed to change a liquid to a gas |
| pascal | metric unit for pressure |
| pressure | amount of force per unit of area |
| thermal expansion | when heat causes a substance to spread out |
| thermal pollution | unhealthy heat in our environment |
| Archimedes' principle | buoyant force equals weight of object |
| Bernoulli's principle | air travelling over a curved surface moves faster and exerts less pressure |
| Boyle's law | (bIPV) If pressure increases, volume decreases |
| Charle's Law | if temperature increases, pressure does, too. |
| Venturi effect | fluids going through small places move faster and with less pressure |
| Pascal's principle | fluids exert equal pressure in all directions |
| kinetic theory of matter | all matter is made of constantly moving particles |
| solid | state of matter with a definite shape and volume |
| liquid | state of matter with a definite volume, but no definite shape |
| gas | state of matter with no definite shape or volume |
| plasma | a gaslike mixture of charged particles |