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Weather Unit Vocab
Science
| Term | Definition |
|---|---|
| Map | a flat, 2-dimensional drawing of land and water |
| Globe | a spherical scale model of the Earth |
| Latitude | geographic coordinate that specifies the north or south equator |
| Longitude | distance measured in degrees east or west from an imaginary line (called the prime meridian) that goes from the North Pole to the South Pole and that passes through Greenwich, England |
| Hemisphere | a half of the earth, usually divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles |
| Weather | the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, and precipitation |
| Climate | white wispy clouds that form at high altitudes and are always made of ice crystals |
| Atmosphere | the envelope of gasses surrounding the earth |
| Cirrus | white wispy clouds that form at high altitudes and are always made of ice crystals |
| Cumulus (cumulo) | fair weather clouds wit white puffy tops and dark flat bottoms |
| Stratus | lowest clouds that cover the sky like a thick gray blanket |
| Nimbus/Nimbo | another word associated with clouds |
| Cumulonimbus | cloud forming a towering mass with a flat base at fairly low altitude and often a flat top, as in thunderstorms. |
| Land Breeze | a breeze blowing toward the sea from the land, especially at night, owing to the relative warmth of the sea. |
| Sea Breeze | a breeze blowing toward the land from the sea, especially during the day owing to the relative warmth of the land. |
| Precipitation | rain, snow, sleet, or hail that falls to the ground. |
| Evaporation | the process of turning from liquid into vapor. |
| Condensation | water which collects as droplets on a cold surface when humid air is in contact with it. |
| Jet Stream | a narrow variable band of very strong predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres. |
| Gulf Stream | a strong ocean current that brings warm water from the Gulf of Mexico into the Atlantic Ocean. |
| Air Mass | a body of air with horizontally uniform temperature, humidity, and pressure. |
| La Nina/ El Nino | climate patterns in the Pacific Ocean that can affect weather worldwide. |
| Temperture | the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch. |
| Air Pressure | pressure exerted by air |
| Humidity | quality of being humid. |
| Thermometer | an instrument that measures temperature. |
| Barometer | an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude. |
| Anemometer | an instrument for measuring the speed of the wind, or of any current of gas. |
| Wind Vane | an instrument that measures the direction from which the wind is blowing. |
| Rain Gauge | a device for collecting and measuring the amount of rain which falls. |
| Front | the side or part of an object that presents itself to view or that is normally seen or used first; the most forward part of something. |
| Hurricane | a storm with a violent wind, in particular a tropical cyclone in the Caribbean. |
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