Term
118.Layers of the Atmosphere
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Definition
Def: troposphere, stratosphere, mesosphere, and thermosphere.
Sent: We are learning about the layers of the atmosphere.
Ex 1: troposphere Ex 2: stratosphere |
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Term
119. Changing states of water
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Definition
Def: the stages of water
Sent: What are the changing states of water?
Ex 1: gas Ex 2: liquid |
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Term
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Definition
Def: The quantity of heat absorbed or released by a substance undergoing a change of state
Sent: Latent heat is the amount of heat absorbed by a substance.
Ex 1: Melting Ex 2: vapourisation
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Term
121. Saturation Point
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Definition
Def: the stage at which no more of a substance can be absorbed into a vapor or dissolved into a solution.
Sent: They needed to find the saturation point for a project.
Ex 1: chemistry Ex 2: cooling
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Term
122. Relative Humidity
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Definition
Def: the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at the same temperature
Sentence: Relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture the air can hold.
Ex 1: Kerry Emanuel Ex 2: vapor
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Term
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Definition
Def: an instrument used for measuring the moisture content in the atmosphere
Sent: We need to use a hygrometer to measure the amount of moisture in the air.
Ex 1: humidity Ex 2: relative humidity
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Term
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Definition
Def: a measure of atmospheric moisture
Sent: They have to find the dew point.
Ex 1: saturation Ex 2: relative humidity
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Term
125. Adiabatic Rates
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Definition
Def: the rate of temperature decrease with altitude for a parcel of dry or unsaturated air rising under adiabatic conditions
Sent: Adiabatic Rate can also be called lapse rate.
Ex 1: height Ex 2: atmosphere
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Term
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Definition
Def: an aerosol comprising a visible mass of liquid droplets or frozen crystals made of water or various chemicals
Sent: There were not a lot of clouds out today
Ex 1: cumulus Ex 2: stratonimbus
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Term
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Definition
Def: a volume of air defined by its temperature and water vapor content
Sent: Air masses cover many hundreds or thousands of square miles, and adapt to the characteristics of the surface below them.
Ex 1: warm mass Ex 2: latitude
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Term
128: Air Pressure
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Definition
Def: the pressure exerted by the weight of air in the atmosphere of Earth
Sent: We are now getting the air-pressure through the pipe in both ends of the tube alike, and do not move the pellet either way.
Ex 1: gravity Ex 2: high air pressure
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Term
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Definition
Def: a scientific instrument used in meteorology to measure atmospheric pressure
Sent: Barometers and pressure altimeters are essentially the same instrument, but used for different purposes.
Ex 1: air pressure Ex 2: measurement
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Term
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Definition
Def: air in natural motion, as that moving horizontally at any velocity along the earth's surface
Sent: Wind is the movement of air.
Ex 1: breeze Ex 2: hurricane
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Term
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Definition
Def: a line drawn on a weather map or chart that connects points at which the barometric pressure is the same
Sent: They had to look at an isobar map.
Ex 1: blue H Ex 2: red L
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Term
132. Factors affecting wind
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Definition
Def: pressure difference, landscape feautures
Sent: It was hard to find factors that affect wind.
Ex 1: low pressure Ex 2: high pressure
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Term
133. Condensation nuclei
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Definition
Def: small particles typically 0.2 µm, or 1/100th the size of a cloud droplet on which water vapour condenses
Sentences: Condensation nucleus, tiny suspended particle, either solid or liquid, upon which water vapour condensation begins in the atmosphere.
Ex 1: cloud Ex 2: rain
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Term
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Definition
Def: an area of closed, circular fluid motion rotating in the same direction as the Earth
Sent: Cyclones are scary.
Ex 1: counterclockwise Ex 2: clockwise
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Term
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Definition
Def: a weather phenomenon defined by the United States National Weather Service's glossary as "a large-scale circulation of winds around a central region of high atmospheric pressure
Sent: Anticyclones are opposite to cyclones.
Ex 1: high pressure Ex 2: cyclone
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Term
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Definition
Def: the boundary of an advancing mass of cold air, in particular the trailing edge of the warm sector of a low-pressure system
Sent: The weather map showed the cold front coming in.
Ex 1: blue triangles Ex 2: cold
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Term
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Definition
Def: the boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system
Sent: The warm front symbol is red semi circles.
Ex 1: red Ex 2: semi circles
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