| A | B |
|---|
| storm surge | a large wave caused by strong winds |
| evaporation | the process that changes a liquid to a gas |
| condensation | the process that changes a gas to a liquid |
| surface current | a river of water in the ocean, caused by blowing winds |
| water cycle | the constant recycling of water from Earth's surface |
| tides | the daily change of the local water level of the ocean |
| precipitation | any form of water that falls from the sky |
| deep ocean current | forms when cold, dense ocean water meets and flows beneath warmer ocean water |
| wave | the up and down motion of water |
| mid-ocean ridge | the largest chain of mountains on Earth |
| continental shelf | the gently sloping part of the ocean floor near the shore |
| trench | a deep valley on the ocean floor, formed when two plates collide |
| abyssal plain | a big, flat area of the ocean that is covered with a thick layer of sediment |
| shore zone | the place where the land and the ocean meet |
