| A | B |
|---|
| matter | anything that has weight and takes up space |
| volume | the amount of space matter takes up |
| chemistry | the study of matter |
| energy | the ability to make things move |
| kinetic energy | the energy of moving things |
| molecules | the tiny bits that make up matter |
| state | the form in which matter is found |
| solid | a form of matter that has a definite shape and volume |
| vibrate | move back and forth quickly in a small space |
| liquid | a form of matter that has a definite volume but no definite shape |
| gas | a form of matter that has no definite shape or volume |
| compressed | squeezed into a smaller volume |
| melting | changing a solid to a liquid |
| vaporization | changing a liquid to a gas |
| evaporation | a kind of vaporization without boiling |
| water vapor | water in the air in the form of a gas |
| condensation | changing a gas to a liquid |
| element | a simple substance that cannot be broken down into simpler substances |
| properties | things that help identify an element |
| luster | the shininess of a material |
| brittle | easily broken into pieces |
| malleable | able to be flattened out when hit |
| metals | a group of elements that have similar properties |
| conduct | to carry |
| non-metals | a group of elements that have different properties from metals |
| chemical symbols | a short way of writing the names of the elements |
| universal | worldwide; the same all over the world |
| atomic number | a number used to identify an element and show its place in the periodic table |
| group | a family of elements going down the periodic table |
| period | a family of elements going across the periodic table |
