| A | B |
|---|
| water cycle | The movement of water from the surface of Earth into the air and back again. |
| precipitation | Water that falls to Earth. |
| evaporation | The process by which a liquid changes into a gas. |
| condensation | The process by which a gas changes into a liquid. |
| rain | Precipitatino that is liquid water. |
| sleet | Precipitation caused when rain falls through freezing air and turns to ice. |
| snow | Precipitation caused when water vapor turns directly into ice and forms ice crystals. |
| hail | Round pieces of ice formed when frozen rain is coated with water and refreezes. |
| tornado | A fast-spinning spiral of wind that touches the ground. |
| hurricane | A large tropical storm that has winds of at least 74 miles per hour. |
| sea breeze | A breeze that moves from sea to the land. |
| land breeze | A breeze that moves from the land to the sea. |
| rain shadow | The area on the side of a mountain range with less rain and cloud cover. |
| air mass | A large body of air that has a similar temperature and moisture level. |
| cold front | The boundary where a cold air mass moves under a warm air mass. |
| warm front | The boundary where a warm air mass moved over a cold air mass. |
| barometer | A weather instrument used to measure air pressure. |
| anemometer | A weather instrument that measures wind speed. |
