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Air & the Atmosphere

Bonnie Branch 6th grade - Air & the Atmosphere

TermDefinition
Matter Anything that has mass and takes up space (has volume)
Mass Amount of matter in something
Density Amount of matter in a given space / volume
Gravity Force of attraction that exists between all objects in the universe
Atmosphere Envelope of gases that surrounds Earth
Cellular respiration Process by which a cell releases energy from food molecules
Troposphere The lowest layer of the atmosphere / where weather occurs / temperatures decrease with altitude
Stratosphere The second layer of the atmosphere / ozone layer located in the upper stratosphere / temperatures increase with altitude
Mesosphere Third layer of the atmosphere / where most meteoroids burn up / temperatures decrease with altitude (coldest layer)
Thermosphere Upper layer of the atmosphere / temperatures increasing with proximity to the sun / air has very low density
Radiant energy Energy given off by the sun that can travel through empty space
Radiation Movement of the Sun’s energy through empty space
Conduction Transfer of heat through matter by direct contact
Convection Process by which heat is transferred through a liquid or a gas
Pressure Amount of force per unit of area
Barometer Instrument used to measure air pressure
Wind The horizontal movement of air
Air current Up-and-down movement of air
Wind vane Instrument that indicates wind direction
Anemometer Instrument that measures wind speed
Created by: kjanelli
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