| A | B |
| Chemistry | study of matter |
| matter | anything that takes up space and has mass |
| properties | characteristics used to describe a substance |
| gas | phase of matter that has no definite shape or volume |
| liquid | phase of matter that has definite volume and takes shape of its container |
| solid | phase of matter that has a definite shape and volume |
| condensation | change from a gas to a liquid |
| evaporation | change from a liquid to a gas at the surface of the liquid |
| freezing | change from a liquid to a solid |
| melting | change from a solid to a liquid |
| chemical change | change that produces a new substance |
| physical change | change that does not produce a new substance |
| elements | simple substances that cannot be broken down into simpler substances |
| chemical symbols | shorthand way of writing the names of the elements |
| group | vertical column of elements in the periodic table |
| period | horizontal row of elements in the periodic table |
| periodic | repeating pattern |
| ductile | able to be drawn into thin wire |
| luster | shine |
| malleable | able to be hammered into different shapes |
| metals | elements that have the properties of luster, ductility, malleablility |
| nonmetals | elements that have none of the properties of metals |
| inert gases | six elements that make up the last group in the periodic table |