Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Weather Unit Vocab
| Term | Definition |
|---|---|
| Latitude | geographic coordinate that specifies the north or south of the Equator |
| Longitude | distance measured in degrees east or west from an imaginary line 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 |
| Atmosphere | the envelope of gasses surrounding the earth |
| Weather | the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, and precipitation |
| Climate | the average weather conditions in an area over a long period |
| Polar | relating to the North or South Pole |
| Continental | forming or belonging to a continent. |
| Maritime | connected with the sea, especially in relation to seafaring commercial or military activity |
| Rain | moisture condensed from the atmosphere that falls visibly in separate drops. |
| Freezing Rain | rain that freezes on impact with the ground or solid objects. |
| Sleet | a form of precipitation consisting of ice pellets, often mixed with rain or snow. |
| Snow | atmospheric water vapor frozen into ice crystals and falling in light white flakes or lying on the ground as a white layer. |
| Hail | when chunks of ice fall from the sky |
| Rain Gauge | a device for collecting and measuring the amount of rain which falls. |
| Wind | the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction. |
| Anemometer | an instrument for measuring the speed of the wind, or of any current of gas. |
| Wind Vane | A wind vane is mounted on a shaft or spire that is elevated off the ground. |
| Coriolis Effect | an effect whereby a mass moving in a rotating system experiences a force (the Coriolis force ) acting perpendicular to the direction of motion and to the axis of rotation |
| Trade Winds | a wind blowing steadily towards the equator from the northeast in the northern hemisphere or the southeast in the southern hemisphere, especially at sea |
| Prevailing Westerlies | prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude |
| Polar Easterlies | dry and cold prevailing winds that blow from the east |
| Air Pressure | the weight of their air pushing on everything around it |
| Barometer | a weather instrument that measures air pressure |
| Low Pressure | a mass of warm rising air |
| High Pressure | a mass of cool dry air |
| Occluded Front | forms when a warm air mass gets caught between two cold air masses |
| Stationary Front | warm air is present behind it (to its south) with cool air ahead of it (to its north) |
| Jet Stream | bands of strong wind that generally blow from west to east all across the globe |
| Gulf Stream | a warm and swift Atlantic Ocean current that follows the eastern coastline of the US and Canada before crossing the Atlantic Ocean towards Europe |
| El Nino | a warming of the ocean surface, or above-average sea surface temperatures, in the central and eastern tropical Pacific Ocean |
| La Nina | the periodic cooling of ocean surface temperatures in the central and east-central equatorial Pacific |
Created by:
Nrathi
Popular Science sets