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Water and the Atmosphere Ch 3
Interactive Science Series
37
Science
6th Grade
05/03/2018

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Term
weather
Definition
the condition of Earth's atmosphere at a particular time and place
Term
atmosphere
Definition
the envelope of gases that surrounds a planet
Term
water vapor
Definition
water in the form of a gas
Term
density
Definition
the amount of mass in a given volume
Term
air pressure
Definition
the weight of a column of air pushing on an area
Term
barometer
Definition
an instrument that us used to measure air pressure
Term
mercury barometer
Definition
consists of a long glass tube that is closed at one end and open at the other
Term
aneroid barometer
Definition
an airtight metal chamber used to measure air pressure
Term
altitude
Definition
distance above sea level; elevation
Term
troposphere
Definition
the layer of the atmosphere where Earth's weather occurs
Term
stratosphere
Definition
the second layer of the atmosphere; contains ozone
Term
mesosphere
Definition
the middle layer of the atmosphere
Term
thermosphere
Definition
the outermost layer of the atmosphere
Term
ionosphere
Definition
80 km above surface to 400 km above surface
Term
exosphere
Definition
400 km above surface outward
Term
electromagnetic radiation
Definition
a form of energy that can move through the vacuum of space
Term
radiation
Definition
the direct transfer of electromagnetic waves
Term
infrared radiation
Definition
has wavelengths that are longer that the wavelengths for red light
Term
ultraviolet radiation
Definition
invisible form of energy with wavelengths shorted that wavelengths for violet light
Term
scattering
Definition
the dispersal of light by dust sized particles in the atmosphere
Term
greenhouse effecct
Definition
the process of gases holding heat from Earth's atmosphere
Term
temperature
Definition
the average amount of energy of motion of each particle of a substance
Term
thermal energy
Definition
the total energy of motion in the particles of a substance
Term
thermometer
Definition
a device that measures temperature
Term
heat
Definition
thermal energy that is transferred form a hotter object to a cooler one
Term
convection
Definition
the transfer of hear by the movement of a fluid
Term
conduction
Definition
the transfer of heat between two objects that are touching
Term
convection currents
Definition
the upward movements of warm air and the downward movements of cool air
Term
wind
Definition
the movement of air parallel to Earth's surface
Term
anemometer
Definition
an instrument to measure wind speed
Term
windchill factor
Definition
the increased cooling that a wind can cause
Term
local winds
Definition
winds that blow over short distances
Term
sea breeze
Definition
a local wind that blows over an ocean or a lake
Term
land breeze
Definition
the flow of air from land to a body of water
Term
global winds
Definition
winds that blow steadily from specific directions over long distances
Term
Coriolis Effect
Definition
the wave Earth's rotation makes winds curve
Term
latitude
Definition
the distance from the equator measured in degrees
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