| A | B |
|---|
| chemistry | the study of matter and its reactions |
| properties | characteristics used to describe a substance |
| matter | anthing that has mass and takes up space |
| phase | the particular form (or state) of matter |
| gas | a phase of matter that has no definite shape or volume |
| liquid | a phase of matter with a definite volume, but no definite shape |
| solid | phase of matter with a definite volume and a definite shape |
| physical change | a change that does not produce any new substances |
| chemical change | a change that produces new substances |
| evaporation | process of changing a liquid into a gas |
| freezing | the process of changing a liquid into a solid |
| melting | the process of changing a solid into a liquid |
| condensation | the process of changing a gas into a liquid |
| elements | simple substances that cannot be broken down into simpler substances |
| periodic | a repeating pattern |
| malleable | anything that is able to be hammered into different shapes |
| nonmetals | elements that have none of the properties of metals |
| chemical symbols | shorthand way of writing the names of elements |
| period | a horizontal row of elements in the periodic table |
| luster | a shine; a shiny appearance |
| inert gases | six inactive elements that make up the last group in the periodic table of elements |
| group | a vertical column of elements in the periodic table |
| ductile | anything that can be drawn into thin wires |
| metals | elements that have the properties of luster, ductility, and malleability |
