| A | B |
| Coriolis Effect | The apparent curving path of a moving object from an otherwise straight path due to the earth's rotation. |
| Deep Current | A stream like movement of ocean water far below the surface. |
| El Nino | This periodic change in the location of warm and cool surface waters in the Pacific Ocean. |
| Surface Current | A horizontal movement of ocean water that is caused by wind and that occurs at or near the ocean's surface. |
| Tide | The periodic rise and fall of the water level in the oceans and other large bodies of water |