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PVES Week 1
Weather
| Question | Answer |
|---|---|
| The amount of thermal energy in the atmosphere is? | temperature |
| A boundary between two air masses of different temperature and different humidity is a? | front |
| ________________is the amount of moisture in the air. | humidity |
| A large body of air that has the same temperature, moisture, and pressure is an ______ ___________ | air mass |
| ___________ is the weight of the air. | air pressure |
| What are the four types of clouds that associate with certain weather conditions? | cumulus, cirrus, stratus, cumulonimbus |
| The smooth, gray clouds that can cover the sky and usually produce a light rain or drizzle are? | stratus clouds |
| Light, feathery clouds that mean fair weather at the time, but rain or snow later are? | cirrus clouds |
| Cumulus clouds that become dark on the bottom and produce thunderstorms are? | cumulonimbus |
| Different atmospheric conditions create different types of __________. | precipitation |
| What are the four types of precipitation? | rain, sleet, snow, hail |
| _________ pressure areas are usually associated with cloudy weather and strong winds. | low |
| ___________ pressure areas are usually associated with fair weather and light winds. | high |
| When a mass of light air moves in and slides over a mass of heavier air, it often leads to a steady rain or snow an INCREASE in air temperature. This is a _________ front. | warm |
| When a mass of heavy air slides in underneath a mass of lighter air, it often leads to thunderstorms and a DROP in air temperature. This is a ________ front. | cold |
| Scientists who collect data using a variety of instruments and then use that data to predict weather patterns are ___________. | meteorologists |
| __________ is measured with a rain gauge. | precipitation |
| What instrument is used to measure air pressure? | barometer |
| Wind velocity, or speed, is measured with an __________. | anemometer |
| What instrument is used to measure air temperature? | thermometer |
| Hurricanes, thunderstorms, and tornadoes are caused by _________ atmospheric conditions. | extreme |
| When a warm, low pressure weather system is surrounded by cooler air over ocean waters, a severe storm with winds above 75 miles an hour may occur. This type of storm is a __________. | hurricane |
| When a thunderstorm meets strong winds high in the sky, the winds can cause the storm to spin in a strong , rotating column of air that reaches from a cumulonimbus cloud to the ground. This type of storm is called a ___________. | tornado |
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