| ton | 2,000 pounds |
| cup | 8 fluid ounces |
| pint | 2 cups |
| quart | 2 pints |
| gallon | 4 quarts |
| ratio | comparison of one number to another |
| quadrant | section on a coordinate plane |
| plot | point on a graph |
| range | set of all possible values |
| trojan horse | hidden instructions inside a computer program |
| hacker | someone who breaks into a computer system |