| A | B |
|---|
| atom | one piece of matter |
| molecule | 2 or more atoms bonded together |
| particle | a small piece of something |
| energy | energy is the capacity to perform work; energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, electrical, or other forms. |
| temperature | a measure of how hot or cold something is |
| heat | a form of energy that is transferred by a difference in temperature |
| state of matter | the physical form of matter, which includes solid, liquid and gas |
| phases of matter | the physical form of matter, which includes solid, liquid and gas |
| gas | a form of matter that does not have a definite shape or volume |
| liguid | a state of matter that does not have a definite shape but does have a definite volume |
| solid | a state of matter that does have a definite shape and volume |
| movement | to change position |
| vibrate | to move back and forth in place |
| collision | when two of more objects bump into each other |
| position | where something is |
| independently | by itself, not relying on others |
| boiling | when heat is added changing a liquid into a gas |
| condensation | when heat is removed so that a gas changes into a liquid |
| evaporation | when heat is added causing the surface a liquid to change into a gas |
| freezing | removing heat to change a liquid into a solid |
| melting | adding heat so that a solid changes into a liquid |
| sublimation | adding heat so causing a solid to change directly into a gas |
| boiling point | the temperature at which a substance changes from a liguid into a gas |
| boiling point | opposite of condensation point |
| melting point | opposite of freezing point |
| melting point | the temperature at which a substance changes from a solid to a liquid |
| freezing point | opposite of melting point |
| condensation point | opposite of boiling point |
| freezing point | the temperature at which a liquid changes into a solid |
| condensation point | the temperature at which a gas changes into a liquid |
| phase | a synonym for state |
| physical change | changing a substance so that it looks different but is still made of the same molecules |
| property | a characteristic of a substance |
