| A | B |
|---|
| Abyssal Plain | Huge,flat area of deep ocean floor. |
| Shore Zone | The place where land and ocean meet. |
| Continental Shelf | The ocean floor of the shore zone. |
| Tide | A daily change in the local water level of the ocean. |
| Mid-ocean Ridge | A vast chain of mountains that follow the center of Earth's oceans. |
| Deep Ocean Current | An ocean current formed when cold water flows underneath warm water. |
| Surface Current | An ocean current formed when steady winds blow over the surface of the ocean. |
| Trench | A deep ocean valley; some of these are the deepest parts of the ocean. |
| Mid | Another way to say Middle or Center. |
| Plain | A flat area. |
