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Chapter 2 Weather Factors Mrs. Everett/Mirabello ett
Chapter 2 Test Weather Factors Mrs. Everett/Mirabello Weather&Climate
37
Science
6th Grade
02/11/2011

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Term
Ultraviolet wavelengths
Definition
Shorter than visible light
Term
Wavelengths of Violet light
Definition
Longer than wavelengths of ultra violet radiation
Term
Infrared radiation
Definition
Most of the energy that heats Earth's atmosphere
Term
Thermal Energy
Definition
The total energy of motion in the molecules of a substance
Term
Electromagnetic Waves
Definition
How energy travels through space to Earth
Term
Visible Light, Infrared Radiation, and Ultra Violet Radiation
Definition
Energy from the sun that reaches Earth
Term
The Greenhouse Effect
Definition
The process by which gases hold heat in the atmosphere
Term
Conduction
Definition
Heat transfer between two substances that are in CONTACT Ex: touch a hot spoon
Term
Convection
Definition
Transfer of heat by FLUID movement/Most heating of troposphere/Takes place because COLD air is MORE dense than WARM air
Term
Radiation
Definition
Direct transfer of energy by electromagnetic waves.Ex:How heat from a campfire reaches you.
Term
The freezing point of pure water
Definition
Zero Degrees Celsius
Term
Winds are caused by differences in...
Definition
Air Pressure
Term
Areas of Low Pressure
Definition
Where air tends to move toward
Term
Anemometer
Definition
Measures wind speed
Term
Coriolis Effect
Definition
Earth's rotation make the winds seem to curve
Term
Global winds
Definition
Blow from specific directions over LONG distances
Term
Local Winds
Definition
Caused by unequal heating within a SMALL area/Blow over shorter distances than Global winds.
Term
Wind
Definition
Caused by uneven heating of the atmosphere which leads to differences in air pressure, which causes wind
Term
Earth's major wind belts
Definition
Trade winds, Prevailing Westerlies, and Polar Easterlies
Term
Doldrums
Definition
Weak winds
Term
Horse Latitudes
Definition
Located at 30 degrees North and South Latitudes
Term
Wind Chill Factor
Definition
Increased cooling that can make the air feel cooler than the measurement on the thermometer
Term
Clouds
Definition
Form when water vapor in the air becomes liquid water or ice crystals
Term
Three Main Types of Clouds
Definition
Cumulus, Stratus, and Cirrus
Term
Stratus Clouds
Definition
Flat Layered clouds that cover much of the sky
Term
Cumulonimbus Clouds
Definition
Large clouds that often produce thunderstorms
Term
Cirrus Clouds
Definition
Very high feathery clouds
Term
Cumulus Clouds
Definition
Form near the ground and look fluffy and puffy
Term
Precipitation
Definition
Any form of water that falls from clouds
Term
Psychrometer
Definition
Measures relative humidity
Term
Most of the world receives more...
Definition
rain than snow
Term
Hail
Definition
An ice pellet larger than 5 millimeters that forms during a thunderstorm
Term
Small Water drops
Definition
Make up mist and drizzle
Term
Sleet
Definition
Forms when raindrops fall through a layer of air below freezing point and become solid particles of ice as they fall.
Term
Freezing rain
Definition
Rain drops don't freeze in the air but do freeze when they touch a cold surface
Term
Land Breeze
Definition
The flow of air from land to a body of water/air over land cools more quickly
Term
Sea breeze
Definition
The flow of air from an ocean or a lake to the land/warm air rises over the land forming cooler air from the water under it.
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