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39 Cards in this Set
- Front
- Back
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________ is an instrument that measures the amount of moisture in the air.
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hygrometer
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What property of air keeps a dry paper towel inside a glass from getting wet when the glass is turned upside down and pushed into a container of water?
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air pressure
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__________ use data and instruments to predict weather conditions.
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meteorologists
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A __________cloud is a thin, wispy cloud made of ice crystals high in the air.
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cirrus
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The L symbol on a weather map indicates an area of ________.
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low pressure
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Which instrument is used to measure the amount of precipitation falling to the ground?
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rain gauge
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A violent storm that usually forms over warm oceans is called a ___________.
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hurricane
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What are the three properties of air?
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1. It has mass
2. It takes up space 3. It exerts pressure |
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The type of weather in a specific area over a period of time is called ________.
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climate
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A _________ cloud is a flat, sheet-like cloud spread out over the sky.
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stratus
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________ is any form of water that falls to the Earth.
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precipitation
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The weight of the air pushing down on the Earth's surface is called _________.
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air pressure
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The amount of water vapor in the air is called _________.
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humidity
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Clouds are composed of ______.
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water droplets
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Water condenses to form ________ of water droplets or ice particles suspended in the air.
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clouds
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This weather instrument measures wind speed.
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anemometer
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The H symbol on a weather map indicates an area of _______.
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high pressure
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This weather instrument measures air pressure.
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barometer
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What type of weather is associated with a high pressure system?
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dry and hot
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This weather instrument measures temperature.
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thermometer
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A ________, which has a funnel shape, is dangerous because it appears quickly and moves in an unpredictable path.
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tornado
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The __________ is the continuous movement of water in our atmosphere. It involves evaporation, condensation, and precipitation.
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water cycle
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A large body of air with nearly the same temperature and moisture throughout is known as an _____________.
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air mass
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What part of the water cycle does the sun represent?
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energy source
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The changing of water vapor into water drops is called _______.
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condensation
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________ clouds are puffy, white, cotton-ball type clouds. They are usually seen during fair weather.
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cumulus
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A rapid circling column of air that moves in a narrow path over land is a ________.
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tornado
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_________ is the measure of the amount of heat energy in the atmosphere.
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temperature
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What type of weather would be associated with a low pressure system?
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wet and cold
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What part of the water cycle do clouds represent?
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condensation
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In a ________ front, warm air rises up and over the denser cold air.
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warm
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If you want to fly a kite, which instrument would tell you the wind speed?
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anemometer
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When warm, humid air along a front is pushed up suddenly, a ______________ may develop.
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thunderstorm
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Thunderstorms and tornadoes are most likely going to be produced by what type of cloud?
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cumulonimbus
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A ________ front often produces fast-rising air and strong winds.
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cold front
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_______ form when air masses of different temperatures collide.
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thunderstorms
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The boundary between air masses of different temperature and humidity is called
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front
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Cirrus clouds may tell you a _________ is coming.
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warm front
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When warm air and cold air meet, the warm air moves over the cold air because the warm air is _______________ .
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less dense
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