| A | B |
|---|
| matter | anything that has mass and takes up space |
| atom | the smallest representative particle of an element |
| compound | two or more elements chemically united |
| chemical change | process by which one or more substances are converted into other substances |
| chemical property | characteristics that describe a substance's composition and reactivity (how the substance reacts) |
| element | substance that cannot be separated into simpler substances by chemical reactions |
| extensive property | a property that depends on the amount of the substance (ex. mass or volume) |
| chromotography | separating a mixture based on the different rates substances travel through a medium (ex. paper) |
| distillation | method of separating substances in a mixture based on their different boiling points |
| filtration | separating a solid from a liquid by pouring the mixture though a porous medium that will trap the solid and let the liquid pass through it |
| intensive property | a property that is independent of the amount of the substance (ex. density) |
| molecule | two or more atoms chemically combined |
| mixture | two or more susbtances physically combined so that each substance retains it's identity and properties |
| physical change | change that occurs without changing the chemical composition of the substance (ex. phase change) |
| physical property | characteristic that can be measured without changing the chemical composition of the substance (ex. color, freezing point) |
| states of matter | solid, liquid, and gas |
| pure substance | matter that is made up of only one type of particle |
| solution | a homogeneous mixture of substances |
