| A | B |
|---|
| tides | The daily changes in the local water level of the ocean. |
| mid-ocean ridge | A vast chain of mountains that runs along the center of the Earth's oceans. |
| abyssal plain | Huge flat area of ocean floor that is covered with thick layers of sediment. |
| condensation | The process by which water vapor changes from a gas to a liquid. |
| precipitation | Water that falls to the Earth as rain, snow, sleet, or hail. |
| trench | Valley that forms on the ocean floor where two plates come together, very deep. |
| water cycle | Recycling water on Earth - water vapor, clouds, rain and the ocean are parts of this. |
| wave | An up and down movement of water. |
| shore zone | Where most of the ocean's resources are found. |
| continental shelf | The gently sloping part of the ocean floor near the shore. |
| deep ocean current | Forms when cold water sinks and flows underneath warm water. |
| storm surge | A very large series of waves caused by high winds over very large areas of the ocean. |
| surface current | Blowing winds form a _____, a river of water in the ocean. |
| evaporation | The process by which a liquid changes into a gas. |
| continental shelf. | Part of the ocean floor nearest the shore. |
| moon | The pull of this is on the Earth is the main reason for tides. |
| salts | Ocean water is a mixture of this and water. |
| sun | Provides the energy for the water cycle. |
