| A | B |
| matter | anything that has mass and takes up space |
| mass | the amount of matter an object has |
| weight | the measure of the amount of gravity acting on an object's mass |
| volume | the amount of space taken up by matter |
| density | the amount of mass an object has in a known volume |
| state | one of the three main forms of matter |
| solid | a state of matter that has a fixed shape and volume |
| liquid | a state of matter that has a fixed volume, but its shape changes to match the shape of its container |
| gas | a state of matter that does not have a fixed shape or volume |
| physical change | a chand in the appearance of matter without actually changing the matter itself |
| physical property | a characteristic of matter that can be observed or measured and can be changed without changing the matter itself |
| property | a characteristic used to describe matter |
| texture | how a substance feels or looks |
| odor | how a substance smells |
| conductor | a substance that allows electricity to easily travel through it |
| insulator | a substance that does not let electricity pass through it easily |
| magnetic | a decrioption of substances attracted to magnetic force |
| boiling point | the temperature at which a substance changes from a liquid to a gas |
| melting point | the temperature at which a substance changes from a solid to a liquid |
| mixture | a combination of two or more substances that do not join together to form a new substance |
| solution | a mixture in which the substances are spread out evenly between one another and cannot be told apart |
| dissolve | to form a solution with another substance |
| invisible | cannot be seen |