| A | B |
| Archimedes' principle | buoyant force = weight of fluid displaced |
| Bernoulli's principle | As the velocity of fluid increases, its pressure decreases. |
| Boyle's law | Volume of a gas decreases when its pressure increases. |
| buoyant force | upward force exerted by fluids on immersed objects |
| Charles's law | volume of a gas increases as its temperature increases |
| condensation | phase change from gas to liquid |
| heat of fusion | amount of energy needed to melt |
| heat of vaporization | amount of energy needed to boil |
| Pascal's principle | pressure in a fluid is transmitted unchanged throughout the fluid |
| pressure | amount of force exerted per unit of area |
| evaporation | gradual change of a liquid to a gas below its boiling point |
| thermal pollution | caused when excess heat raises the temperature of the environment |
| polluted | contains high levels of unwanted substances |
| plasma | gaslike mixture of charged particles existing at extremely high temperatures |
| thermal expansion | almost all matter exhibits this when heated; contracts when cooled |
| kinetic theory of matter | all matter is made of constantly moving, tiny particles |
| crystal | the arrangement of particles in repeating geometric patterns |
| pascal | SI unit of pressure |
| Venturi effect | reduction of pressure in fluids forced through narrow spaces |
| amorphous solids | solids which are not made of crystals |