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atmosphere
abrecht
29
Science
7th Grade
04/09/2014

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Term
atmosphere
Definition
layer of gases that surrounds a planet
Term
the atmosphere is made up of what?
Definition
nitrogen 78
oxygen 21
water vapor carbon dioxide 1
Term
importances of atmosphere
Definition
provides oxygen
stabilizes surface temperature (traps solar heat)
protects us from meteors
ozone layer protects us from harmful rays
Term
atmosphere we live in
Definition
troposphere
Term
what does temperature do when move from layer to layer
Definition
colder to hotter to colder
Term
atmosphere pressure
Definition
pressure caused by air molecules above greatest surface
Term
1 function of ozone layer
Definition
protects us from uv rays
Term
ozone layer does what
Definition
absorb energy from UV rays
Term
ozone layer protects us from what
Definition
cfc's
Term
cfc's are found in.....
Definition
aerosocol sprays and refrigarators
Term
ozone hole is over....
Definition
antarctica
Term
what have governments done with cfcs
Definition
banned the us of them
Term
most abundant chemical of atmosphere
Definition
nitrogen
Term
how much oxygen is in atmosphere
Definition
21%
Term
do we live in troposhere T or f
Definition
T
Term
all energy generates from what
Definition
sun
Term
heat is
Definition
energy that flows from a hotter object to a cooler object
Term
radiation
Definition
energy transferred by waves-getting sunburn
Term
conduction
Definition
energy transfered by touch (feet burn on hot pavement)
Term
evaporation
Definition
when water changes to water vapor
Term
condensation
Definition
when water vapor changes to water
Term
precipitation
Definition
when wator droplets fall from clouds
Term
run-off
Definition
water in streams and rivers
Term
ground water
Definition
water underground
Term
the three rules of the atmosphere are
Definition
1. different parts of the earths surface heat up, cool down at different rates
2. warm air rises ad cold air sinks
3. land heats up faster and cools down faster than water
Term
doldrums
Definition
near equator, little wind
Term
jet stream
Definition
high in troposphere effects weather patterns
Term
trade winds
Definition
explorers rely on these
Term
convection
Definition
energy transfered by waves warm air rises to attic
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