| A | B |
|---|
| mass | amount of matter in an object |
| length | the distance between two points (one dimensional) |
| volume | amount of space an object takes up |
| density | amount of matter packed into a certain space |
| area | amount of floor space |
| water displacement | method used to find the volume of a rock |
| Tropic of Capricorn | 23.5 degrees South |
| North Pole | 90 degrees North |
| International dateline | 180 degrees East or West |
| Equator | 0 degrees North or South |
| Prime Meridian | 0 degrees East or West |
| Tropic of Cancer | 23.5 degrees North |
| Liter box | object used to measure the volume of a rock |
| meridians | lines of longitude |
| parallels | lines of latitude |
| velocity | speed and direction of an object |
| friction | the unbalanced force that usually keeps objects from remaining motion |
| gravity | the attraction between two objects |
| centripetal force | the force that keeps an object in an orbit |
| electronic balance | Device used to measure mass |
