| A | B |
|---|
| atomic mass | the number of protons added to the number of neutrons in an element |
| boiling point | the temperature at which a liquid becomes a gas |
| buoyancy | upward force of a liquid or gas on an object |
| colloid | a mixture (fog) in which very small, fine particles of one material are scattered through another material, blocking the passage of light without settling out |
| condensation | the changing of a gas into a liquid as heat is removed |
| conductivity | the ability of a material to conduct heat and electricity, a physical property |
| electron | a particle found in the nucleus of an atom with a negative electrical charge |
| emulsion | a mixture (toothpaste) of very small droplets suspended, rather than dissolved (two liquids that do not mix together) |
| energy | the ability to do work |
| evaporation | the slow changing of a liquid to a gas |
| freezing point | the temperature at which a liquid changes to a solid |
| gas | does not have a definite shape, does not have a definite amount of space |
| group | the vertical column or family of the periodic table |
| heterogeneous mixture | a mixture (salad) that contains distinct substances |
| homogeneous mixture | a mixture (milk) is the same throughout |
| liquid | does not have a definite shape, has a definite amount of space |
| neutron | a particle found in the nucleus of an atom with NO electrical charge |
| proton | a particle found in the nucleus of an atom with a positive electrical charge |
| solid | has a definite shape, has a definite amount of space |
| solubility | the maximum amount of a substance that can be dissolved by another substance |
| boiling point | Distillation is used to separate the components in a mixture based on differences in their ________ |
| shaped | metals can be easily _______ |
| pizza | an example of a heterogeneous mixture |
| mass | the amount of matter in an object |
| when molecules at the surface escape at a temperature below its boiling point | A liquid evaporates when ________ |
| dissolved | In a saturated solution as much solute as possible has _________ |
| increases | As the pressure of a gas at a constant temperature decreases, its volume ________ |
| a new substance is formed | The rusting of iron is NOT a physical property because _________ |
| restricts the flow of heat | An insulator is any material that __________ |
| gas to liquid | Which change of state releases heat energy? |
| contains 2 hydrogen atoms and 1 oxygen atom | The formula for water is H2O, indicates that water ________ |
| an atom is mostly empty spaced | Rutherford's experiment showed that ________ |
| it is a liquid that dissolves more solutes than other solvents | Water is considered a "universal solvent" because it ________ |
| Crushing it does not change any of its physical properties. The matter, density, and volume are still the same. | An aluminum can is crushed. Which, if any, of the following physical properties of the aluminum metal have changed: mass, weight, density |
