Science Vocabulary

1. line drawn on a weather map that connects points having equal temps.
3. winter storm that lasts at least three hours with temperatures of -12 degrees celsius or below, poor visibility,and winds of at least 51km/h.
4. large body of air that has the same characteristic of temperature and moisture content as the part of earth's surface over which it formed.
5. a person who studies weather and uses info from Doppler radar, ether satellites, caomputers, and other instruments to make weather maps and provide forecast.
8. violent, whirling windstorm that crosses land in a narrow pattern and can result from wind shears inside a thunderhead.
10. boundary between two air masses with different temperatures, density, or moisture.
11. state of the atmosphere at a specific time and place, determined by factors including air, pressure amount of moisture in the air, temperature, wind, and precipitation.
13. lines drawn on a weather map that connect points having equal atmospheric pressure.
14. temperature at which air is saturated and condensation forms.
15. water falling from clouds-including rain, snow, sleet, and hail- whose form is deter mined by air temp.

2. large, servere storm that forms over tropical oceans, has winds of at least 120 km/h, and loses power when it reaches land
6. measure of the amount of moisture held in the air compared with the amount it can hold at a given temperature.
7. records of earths surface using a map and symbols.
9. amount of water vapor held in the air.
12. a stratus cloud that forms when air is cooled to its dew point near the ground.