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6th Grade Chapter 16

Weather Factors

QuestionAnswer
cumulonimbus clouds large clouds that often produce thunderstorms
two main parts of a psychrometer a wet-bulb thermometer and a dry-bulb thermometer
conduction heat transfer between two substances that are in contact
freezing point of pure water 0 degrees Celsius
infrared radiation most of the energy that heats Earth's atmosphere
most of the heating of the troposphere comes from convection
to modify precipitation, clouds are sometimes seeded with dry ice and silver iodide
anemometer measures wind speed
doldrums are characterized by weak winds
precipitation any form of water that falls from clouds
cirrus clouds are very high feathery clouds
stratus clouds are layered clouds that often cover much of the sky and a a dull gray color
thermal energy the total energy of motion in the particles of a substance
two conditions required for cloud formation cooling of the air and the presence of particles in the air
winds are caused by differences in air pressure
convection takes place because cold air is more dense than warm air
Coriolis effect Earth's rotation makes global winds curve
ultraviolet wavelengths that are a little bit shorter than visible light
radiation heat from the sun that reaches you
psychrometer measures relative humidity
local winds differ from global winds because they are caused by an unequal heating within a small area
land breezes occur because land cools off faster than water
cool air tends to be more dense and flow under warm air
wind vane measures wind direction
greenhouse effect the process by which gases hold heat in the atmosphere
global winds generally blow from specific directions over long distances
convection current the upward movement of warm air and the downward movement of cool air
clouds form when water vapor in the air becomes liquid water or ice crystals
ozone absorbs most of Earth's incoming ultraviolet radiation
Created by: Mrs. Gordon
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