Study Guide For Test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Which term means the condition of the atmosphere at a certain place & time? | Weather
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| What is a cloud made of? | Water droplets & ice crystals
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| What are the four parts of the water cycle? | Condensation, Precipitation, Runoff, Evaporation
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| The amount of moisture in the air compared to the maximum air can hold is _____. | Humidity
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| What is Relative Humidity at 100% called? | When it is saturated
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| What instrument measures relative humidity? | Psychrometer
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| The ______ _____ is the temp. at which a gas condenses into a liquid. | Dew Point
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| _______ Clouds- puffy & white with flat bottoms; like cotton balls. they form when warm air rises | Cumulous
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| _______ Clouds- layered clouds that stretch across the sky; cover large areas of the sky & often block out the sun; fog | Stratus
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| ______ Clouds- thin, feathery looking clouds made of ice crystals; they form at high altitudes when the wind is strong | Cirrus
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| Write what the following prefixes mean: alto, cirri, & nimbo | Alto: indicate middle clouds
Cirro: describe clouds that form at high altitudes
Nimbo: producing precipitation
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| Name the 4 types of precipitation | rain, sleet, snow, hail
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| What is the difference between snow & sleet? | Sleet- forms when rain freezes in the air & becomes falling ice
Snow- water vapor in the cloud turns into an ice crystal without becoming a liquid first
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| is a huge body of air that temperature & moisture content are constant throughout | air mass
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| What causes changes in weather? | Air masses move & meet
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| where 2 or more air masses meet & don't mix | front
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| an area in the atmosphere that has a lower pressure than the surrounding ares & has winds that spiral toward the center | cyclone
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| the rotation of air around a high pressure center in the opposite of Earth's rotation | anticyclone
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| is an electric discharge between a positively charged area & a negatively charged area | lightning
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| lightning is similar to ____ ________ | static electricity
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| tornadoes happen in only ______% of thunderstorms | 1%
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| About __% of the world's tornadoes occur in the U.S. | 75%
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| What is the single most dangerous thing about a tornado? | strong winds
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| What type of air pressure is involved with tornadoes (low or high)? | Low Pressure
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Created by:
EmCat
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